HEM44A - Tripod iOptron - Free user manual and instructions

Product Type	Hybrid Equatorial Mount (HEM)
Model	iOptron HEM44A
Payload Capacity (without counterweight)	44 lbs (20 kg)
Payload Capacity (with counterweight)	55 lbs (25 kg)
Mount Weight	13.65 lbs (6.2 kg) with dovetail saddle
RA Gear System	StrainWave drive, 640:1 reduction ratio
DEC Gear System	Backlash-free worm/belt system
Periodic Error	270 seconds
PEC	Permanent PEC / Real-time PEC (HEM44EC)
Drive Motor	Stepper motor
Latitude Adjustment Range	15° - 65°
Azimuth Adjustment Range	±6°
Polar Scope	iPolar electronic polar scope (integrated)
Hand Controller	Go2Nova 8409 with 212,000+ object database
Slew Speeds	1×, 2×, 8×, 16×, 64×, 128×, 256×, 512×, MAX (4.5°/sec)
Tracking	Automatic with sidereal, solar, lunar rates
Power Requirement	DC 12V, 5A (5.5/2.5mm plug)
Power Consumption	0.6A (tracking), 1.2A (GOTO)
Power Off Brake	Electronic friction brake
Power-Down Memory	Yes – memorizes RA/DEC positions after power loss
Communication Ports	USB (on hand controller and mount), Wi-Fi (built-in), ST-4 autoguide port
Dovetail Saddle	Vixen/Losmandy-D convertible
Material	All metal, CNC machined, black anodized
Operating Temperature	-20°C to 40°C (hand controller: -10°C to 40°C)
Warranty	Two years limited

Frequently Asked Questions - HEM44A iOptron

How do I set up the HEM44A mount for the first time?

First, set up the tripod and attach the mount head using the azimuth and latitude adjustments. Level the mount, attach the dovetail saddle, and connect the hand controller and power. Then set the zero position, enter time and site information, and perform polar alignment using the iPolar or Polar Iterate Align.

What is the payload capacity of the HEM44A?

The payload capacity is 44 lbs (20 kg) without a counterweight, and up to 55 lbs (25 kg) with an optional counterweight shaft and counterweight.

How do I balance the mount in DEC?

Turn on the mount, slew to one side, disengage the DEC gear switch, and slide the telescope in the dovetail saddle until balanced. Tighten the saddle locking lever and re-engage the gear switch.

Does the HEM44A have a built-in polar scope?

Yes, the HEM44A includes an iPolar electronic polar scope for accurate polar alignment. Connect it to a computer via miniUSB and use the iPolar software.

How can I control the mount from a computer or smartphone?

The mount supports USB connection via the hand controller for ASCOM (Windows) or direct control via software like SkySafari. It also has built-in Wi-Fi for wireless control with iOptron Commander Lite app or ASCOM over Wi-Fi.

What is the power-down memory feature?

The HEM44A can remember its RA and DEC positions even after an abrupt power loss. After power is restored, simply select and slew to the same target, and tracking will continue.

How do I update the firmware?

Download the latest firmware from iOptron's website. Connect the hand controller to a computer via USB, and follow the instructions in the manual for firmware upgrade (Appendix D).

What types of dovetail bars are compatible?

The dovetail saddle is convertible between Vixen-type and Losmandy-D. Instructions for switching are provided in the manual.

How do I perform polar alignment if the pole star is not visible?

Use the Polar Iterate Align function in the hand controller. Select two bright stars: one near the meridian (Alignment Star A) and one near the horizon (Star B). Follow the on-screen prompts to adjust altitude and azimuth iteratively.

What maintenance does the mount require?

Keep the mount clean with a damp cloth (no solvents). Periodically check and adjust gear meshing if needed (see Appendix C). Replace the hand controller CR2032 battery when the clock loses time.

USER MANUAL HEM44A iOptron

Close-up of a black HEMA4 telescope mounted on a tripod, showing no visible text or symbols on the device itself.

iOptron® HEM44™ Hybrid Strain Wave GoTo Equatorial Mount Instruction Manual

Read the Quick Setup Guide (QSG) BEFORE setup and operate the mount! Read the full online Instruction Manual for details.

Please hold the mount/scope when disengaging the gear switch. Any worm system damage due to improper operation will not be covered by iOptron's limited warranty.

If you have any questions please contact us at [e-mail]

WARNING!

NEVER USE A TELESCOPE TO LOOK AT THE SUN WITHOUT A PROPER FILTER! Looking at or near the Sun will cause instant and irreversible damage to your eye. Children should always have adult supervision while observing.

Table of Content

Table of Content....3

1. HEM44 Overview .... 5
2. HEM44 Terms....6

2.1. Parts List....6
2.2. Identification of Parts ...... 7
2.3. HEM44 Port....7
2.4.Go2Nova® 8409 Hand Controller 8

2.4.1.Key Description....9
2.4.2. The LCD Screen....9

2.5. Install and Check the Hand Controller Battery 10
2.6.Bench Testing the Mount 11

1. HEM44 Mount Assembly....12

2. Getting Started....21

4.1. Setup the Mount and Polar Alignment 21
4.2. Manual Operation of the Mount 21
4.3. Go to an Object....21
4.4. Sync to Target....21
4.5. Star Identifying Function....22
4.6. Power-Down Memorization 22
4.7. Install iOptron iGuider 22
4.8. Turn Off the Mount 22

1. Complete Functions of Go2Nova ^® 8409 Hand Controller....23

5.1. Slew to an Object....23

5.1.1. Solar System....23
5.1.2. Deep Sky Objects 23
5.1.3. Stars: 23
5.1.4. Constellations ...... 23
5.1.5. Comets....23
5.1.6. Asteroids....23
5.1.7.User Objects 24
5.1.8.Enter R.A.DEC 24

5.2. Sync to Target....24

5.3. Alignment 24

5.3.1. Pole Star Position 24
5.3.2. Polar Iterate Align 24

5.4. Settings 24

5.4.1. Set Time and Site....24
5.4.2. Set Beep....25
5.4.3. Set Display....25
5.4.4. Set Maximum Slew Rate 25
5.4.5. Set Guiding Rate....25
5.4.6. Set Parking Position 25
5.4.7. Set Tracking Rate 26
5.4.8. Meridian Treatment 26
5.4.9. Set Altitude Limit....26
5.4.10.Wi-Fi Option 26
5.4.11. Set RA Guiding (HEM44EC Only)....26
5.4.12. Language 26

5.4.13. Enable CW Up Position....26

5.5. Edit User Objects....27

5.5.1. Enter a New Comet 27
5.5.2. Enter Other Objects or Observation List....27

5.6.Firmware Information 28

5.7. Zero Position ...... 28

5.7.1. Goto Zero Position 28
5.7.2. Set Zero Position 28
5.7.3. Search Zero Pos....28

1. Maintenance and Servicing 29

6.1. Maintenance 29
6.2.iOptron Customer Service 29
6.3. Product End of Life Disposal Instructions 29
6.4. Battery Replacement and Disposal Instructions....29

Appendix A. Technical Specifications 30
Appendix B. Go2Nova ^® 8409 HC MENU STRUCTURE ....32
Appendix C. Gear Switch Meshing Adjustment 34
Appendix D. Firmware Upgrade .... 37
Appendix E. Computer Control an HEM44 Mount 38
Appendix F. Go2Nova ^® Star List....39
IOPTRON TWO YEAR TELESCOPE, MOUNT, AND CONTROLLER WARRANTY....48

Ver. 1.0 2022.10

iOptron reserves the rights to revise this instruction without notice. Actual color/contents/design/function may differ from those described in this instruction.

1. HEM44 Overview

Introducing the HEM44 and the HEM44EC, iOptron's revolutionary hybrid strain wave drive mounts. These light weight, medium payload titans will deliver an astronomy experience like never before. Imagine a mount head weighing in at 13.65lbs with a payload capability 44lbs, without needing a cumbersome counterweight or shaft. Applying iOptron's multi decade experience creating precision mounts, the HEM44 brings this vision to reality.

Utilizing state of the art strain wave drive technology for the RA movement in tandem with backlash-free DEC worm/belt drive design, the HEM44s deliver unparalleled weight to payload efficiency. Its black anodized all metal CNC machined body is not only appealing to the eye, it's a rugged platform that will perform at the highest level for many years to come. Unique features such as an electronic friction break and power down memory allow the mount safely stop and resume a GoTo slew or continue tracking even after an abrupt power loss (No need to realign and start from the beginning).

The HEM44EC features a high precision RA axis encoder that delivers incredible tracking accuracy, enough that many will choose to image “sans” guiding.

The iOptron HEM44 mount uses the Go2Nova ^® 8409 hand controller to navigate the night sky. This incredible technology helps observers find celestial objects with the aid of the mount's 212,000+ object database!

A HEM44 mount can be controlled by a computer, either via ASCOM/Commander for a Windows PC or a third party INDI driver for MacOS software; a SmartPhone/Tablet via iOptron Commander Lite or an App like SkySafari Pro; or a Raspberry Pi device via INDI driver.

Features:

• Advanced strain wave drive technology
- Payload capacity of 20 kg (44 lbs) with the mount weight of 6.2 kg (13.655 lbs)
- CNC machined
- Unique friction brake to safely stop movement during a planned or unplanned power interruption
• 270 second gear period
• High precision encoder with real time PEC (RPEC) for HEM44EC
- Go2Nova® hand controller with \~212,000 object database
- iPolar electronic polar scope for easy and accurate polar alignment (for HEM44A and HEM44EC)
- Cable management system, no hanging exterior cables to moving parts
- Accept Vixen or Losmandy-D style dovetail bar
• Built in zero position search and locator
• Power down position and location memory
- Integrated ST-4 autoguiding port
• Built-in Wi-Fi (via hand controller)
• USB port for firmware upgrade and computer control
- Soft carrying case
- Two year warranty
- Optional carbon fiber tripod #8061
- Optional iGuider ^TM autoguiding system #3360
- Optional counterweight shaft (#8456SL) and counterweight (#3006-10)
- Optional MiniPier extension #8040 or #8040-8

2. HEM44 Terms

2.1. Parts List ^1

SHIPPING CONTENTS

Your new HEM44 mount comes in one shipping box:

• iOptron ^ HEM44 mount (#HEM44);
  iOptron® HEM44 mount head with iPolar (#HEM44A); or
  iOptron ^® HEM44 mount head with high precision encoder and iPolar (#HEM44EC)
• Go2Nova ^® 8409 Hand Controller with USB port
• Internal iPolar ^TM electronic polar scope (HEM44A or HEM44EC)
• AC adapter 100V-240V, 12V/5A DC output, 5525 plug (for indoor use only)
• 1X coiled control Cable (6P6C RJ11 to RJ11, straight wired)
• USB cable for mount
• MiniUSB cable for iPolar
• Hardcase

OPTIONAL PARTS

• Carbon fiber tripod (#8061)
- iGuider 1 mini autoguiding system (#3360-HEM)
- MiniPier extension #8040 or #8040-8
• Counterweight shaft (#8456SL) and counterweight (#3006-10)

ONLINE RESOURCES (click on the "Support" menu at www.iOptron.com)

• Quick Start Guide
• Instructional manual
• Tips for set up
• Hand controller and mount firmware upgrades (check online for latest version)
• iOptron ASCOM driver and computer control
  • Reviews and feedback from other customers
• Accessories

2.2. Identification of Parts

Figure 1. HEM44 mount assembly

2.3. HEM44 Port

On the Mount:

Figure 2. Ports on a HEM44 mount

• DC 12V IN: DC power socket to power the mount (5.5mmX2.5mm/5525, center positive)
• I/O: Power switch
  • iPolar: iPolar miniUSB port
  • HBX (Hand Box): For connecting to an 8409 Hand Controller
  • ST-4: ST-4 compatible autoguiding port. The wiring is shown in Figure 3

Figure 3. ST-4 Compatible Guiding Port Wiring

• DC 12 OUT (on top of the mount body): DC power output socket (5.5mmX2.1mm/5521, center positive). Maximum current 4A, combined with DC 12V output from dovetail saddle.
• USB INPUT: USB pass through to the USB port on dovetail saddle.

On Dovetail Saddle:

Figure 4. Port on dovetail saddle

• DC12V 3A 5521: DC power output socket (5.5mmX2.1mm/5521, center positive). Maximum current 3A
  • USB: USB-A port connect to mount body.

2.4. Go2Nova ^® 8409 Hand Controller

The Go2Nova ^® 8409 hand controller (HC) shown in Figure 5 is the standard controller used on the HEM44 mount. It has a large LCD screen, function, direction, and number keys on the front; and an HBX (6-pin) and a USB port at the bottom.

Figure 5. Go2Nova® 8409 hand controller

2.4.1. Key Description

• MENU Key: Press "MENU" to enter the Main Menu.
• BACK Key: Move back to the previous screen, or end/cancel current operation, such as slewing.
• ENTER Key: Confirm an input, go to the next menu, select a choice, or slew the telescope to a selected object.
• Arrow (▲▼◀▶) Keys: The arrow keys are used to control the movement of DEC and R.A. axes. Press and hold ▲(DEC+),▼(DEC-) buttons to move a telescope along the DEC direction, ◀(R.A.+), ▶(R.A.-) to move a telescope along the R.A. direction. They are also used to browse the menu or move the cursor while in the menu. Press and holding an arrow key for a fast scrolling.
• Number Keys: Input numerical values. Also used to adjust speeds (1: 1X; 2: 2X; 3: 8X; 4: 16X; 5: 64X; 6: 128X; 7: 256X; 8: 512X; 9: MAX)
  • Help (?) Key: Identify and display bright stars or objects that the telescope is pointing to.
• 0 Key: Stop the mount during GOTO. Also toggling between starting and stopping tracking.
• HBX (Handbox) port: connect the HC to the HEM44 mount using a 6P6C RJ11 cable.
  • USB port: connect the HC to a computer for firmware upgrade and computer control.

2.4.2. The LCD Screen

The 8409 HC has a large 4-line, 21-character per line LCD screen. The user interface is simple and easy to learn. When the mount first turned on, an initial information screen will be displayed as shown in Figure 6, after company logo displayed. It displays the Zero Position, current date and time.

Figure 6. 8409 Initial Information Screen

The LCD screen will switch to the information screen, as indicated in Figure 7, with pressing any button.

Figure 7. 8409 HC LCD Information Screen

1. Target Name/Mount Position: displays the name of the target that telescope is currently pointed to or the current mount position.

2. An object name, such as "Mercury" or "Andromeda Galaxy": Name of the Star or celestial object that the mount is currently slewing to, GOTO or tracking;

3. User Position: The mount is point to a user defined position, which could be a real sky object or just simply due to press an arrow key;

4. Zero Position: Mount is at Zero Position. When set the mount at Zero Position physically, the hand controller should display the same.

5. GPS Status: Indicates if there is GPS or GPS is connected to the satellite. HEM44 does not have a GPS. The GPS status will be always OFF.

6. Right Ascension: Right Ascension of the telescope, or R.A.
7. Declination: Declination of the telescope, or DEC.
8. Azimuth: Azimuth of the telescope (north is 0^ , east 90^ , south 180^ , and west 270^ ).
9. Altitude: Altitude of the telescope (degrees vertical from the local horizon - zenith is 90°).

10. Mount Status: Display current operation status of the mount.

11. Stop: mount is not moving;

12. Slew: mount is moving with an arrow key is pressed;

13. GoTo: mount is slewing to a celestial object using "Select and Slew";

14. Slew speed: It has 9 speeds: 1X, 2X, 8X, 16X, 64X, 128X, 256X, 512X, MAX(1440X, or 6°/sec).

15. Current Time: display local time in a format of HH:MM:SS.

2.5. Install and Check the Hand Controller Battery

The hand controller uses a button battery to keep the Real Time Clock running. The battery is a CR2032 Lithium battery, which is not included due to shipping restrictions.

Open the HC back cover with a good, size 1 (4mm) Phillips Screw Driver. With battery + sign facing up, slide the battery under two small metal hooks on the positive side first. Then push the battery down to make a good contact. Make sure that two spring contacts on the negative side are underneath the battery. If none of the metal pins in battery holder can be seen after battery installed, the battery is not installed properly.

Figure 8. Install a CR2032 battery

If the hand controller can't display the correct date and time, most likely the battery is installed wrong, or power is low and needs be replaced.

2.6. Bench Testing the Mount

Plug in the power and hand controller and turn the power on. Now you can bench test the mount manually.

There are two stoppers to prevent the mount head slew over +/-180 in RA due to internal cable management system. Please do not try to slew pass the stopper when you hear the grinding sound. It may damage the stoppers.

3. HEM44 Mount Assembly

NOTE: The HEM44 mount is a precision astronomical instrument. It is highly recommended that you read the entire manual and become familiar with the nomenclature and function of all components before starting the assembly.

Step 1. Set up tripod

The mount has a 102mm base. Thread the Alignment Peg onto the tripod head, on top of a tripod leg, or between two legs for low latitude. Insert the Accessory Tray through the center rod and secure the setup by tightening Locking Knob from underneath. If you are using a carbon fiber tripod, please use outside 4 threaded holes.

Two views of a mechanical component with a 103mm diameter标注 and a circular cross-section showing internal features (no text or symbols beyond measurement)

Figure 9. HEM44 tripod top : LiteRoc tripod (left) and Carbon fiber tripod (right)

Step 2. Attach mount head

Remove the mount from the package. Retract the 2x Azimuth (Azi) Adjustment Screws from both sides to leave ample space for the alignment peg to be fitted in between the 2x Azi Adj. Screws. Remove the 2x Azi Locking Screws from the mount base and insert them into the opening next. Secure the mount head by tightening the Azi Locking Screws into the M6 holes on the tripod. An Allen wrench is stored in the EQ base if needed.

Figure 10. Attach the mount

Level the mount by adjusting the tripod legs. Use the build-in Bubble Level Indicator or an external leveler for this purpose.

Without any payload, slightly loosen the 4x Latitude Locking Screws. Use the Latitude Adjustment Knob to set the correct latitude value, as displayed in the Latitude Mark Window. Insert the Allen wrench into the Latitude Adjustment Knob for more turning torque.

Two latitude ranges, 15\~41° and 39\~65°, can be set up for the mount head. To change the latitude range from one to the other, both the Latitude Position Bolt and the Latitude Locking Screws need to be moved to the correct locations.

• Loosen the Latitude Locking Screws just enough to adjust the latitude setting to between 39\~41°. Tighten Latitude Locking Screws.
• Unthread and pull out the Position Bolt. Remove and do not lose the two black sleaves. Insert the Position Bolt to a new latitude position with one black sleave on.
• Adjust the Latitude Adjustment Knob while holding the brass eyebolt until it lines up with the Position Bolt. Insert another black tube and secure the Latitude Position Bolt.
• Move the Latitude Locking Screws (one on each side) to the new locations revealed.

HEM44 accepts a Vixen or a Losmandy-D dovetail mounting plate. The default is Vixen-type one. Release the dovetail Saddle Locking Lever and slide the telescope dovetail plate into the saddle with Gear Switch disengaged. Make sure that the arrow sign on the saddle is pointing forward. Tighten the Saddle

Locking Levers. Pull the lever and turn it to the position that the lever is parallel to the saddle to prevent it interfering with the DEC unit during mount GOTO and tracking.

Figure 13. Dovetail saddle locking levers

If you have a scope using a Losmandy dovetail plate, please follow the following steps to convert dovetail saddle from Vixen-type to Losmandy-type.

(1) Loosen the two socket screws (red circled), move the fixed block outward. Then tighten the screws.

Close-up of a mechanical device with multiple screw holes and a handle, shown from two different angles (no text or symbols visible)

Figure 14. Convert dovetail saddle to accept a Losmandy-D plate (1)

(2) Remove the two blue circled screws and pull the dovetail saddle locking block from the saddle.
(3) Release the four screws (yellow circled in Figure 14) to separate the saddle from the mount. Flip the dovetail saddle locking block and secure it onto the saddle from bottom of the dovetail saddle (blue squares in Figure 15)

Close-up of a black mechanical device with attached spring and power cord, showing internal wiring and a close-up view (no text or symbols visible)

Figure 15. Convert dovetail saddle to accept a Losmandy-D plate (2)

(4) Put the dovetail saddle back and retighten the four yellow circled screws. Here is a dovetail saddle that can receive a Losmandy-D dovetail bar.

Close-up of a black mechanical device with mounting holes and a red indicator light (no visible text or symbols)

Figure 16. Dovetail saddle for Loasmandy bar

Step 5. Connect cables

Connect the Go2Nova ^® 8409 Hand Controller to the HBX port on the mount back. Plug in a 12V DC power supply to the DC12V IN socket.

Figure 17. DC power and HBX ports

Step 6. Balance payload

No RA balance is needed for a HEM44 mount.

Turn the mount power on. Press number 9 to change the slew speed to max. Press ◀ or ▶ button to slew the telescope to one side of the mount. Hold the telescope and disengage DEC Gear Switch to check the balance. Release dovetail saddle locking lever and move the scope back and forth to adjust the position. Tighten the dovetail saddle locking lever and engage the gear switch after balancing completed.

Exterior view of a modern industrial machine with a cylindrical top and black components, no visible text or symbols.

Figure 18 Balance the mount in DEC

Return the mount to Zero Position after balancing and engage DEC gear switch.

Close-up of a black mechanical knob with a red circular arrow indicating rotation (no text or symbols)

Figure 19 DEC gear switch

If a counterweight is needed for higher payload, please thread in the CW shaft into the CW shaft mounting hole. Slide the CW up and lock the CW. Put CW shaft safety screw on.

Black tripod-mounted optical instrument with adjustable arm and base (no visible text or symbols)

Figure 20 HEM mount with optional CW shaft and a 5kg CW

STEP 7. Set Zero Position

The Zero Position is the GOTO reference of a HEM mount. The Zero Position is defined as the telescope being on top of the mount head and pointing to the North Pole (in northern hemisphere), with CW shaft mounting hole pointing to the ground. It also need to register the Zero Position to the control software. Use MENU=>Zero Position =>Search Zero Position command to find the Zero Position of the mount. Use arrow key to find tuning the Zero Position. Press ENTER to confirm.

You can also manually registers the current position as zero position. Move the mount to Zero Position either manually or slewed by the hand controller. Press MENU=>Zero Position =>Set Zero Position to register the Zero Position.

STEP 8. Set hand controller

HEM44 mount does not equip with a GPS receiver. Hence one needs to manually enter the GPS location or sync it from the App.

To set up the controller, turn the mount power ON. Press MENU => "Settings":

Select and Slew
Sync. to Target
Alignment
Settings 

Press ENTER and select "Set Time and Site"

Set Time and Site
Set Beep
Set Display
Set Guiding Rate 

Press ENTER. A time and site information screen will be displayed:

2020-10-01 12:01:36
UTC -300 Minute(s)
W071d08m50s DST: N
N42d30m32s Northern 

Set Local Time

Use the ◀ or ▶ key to move the cursor and use the number keys to change the numbers. Use the ▲ or ▼ button to toggle between "Y" and "N" for Daylight Saving Time, or "+" and "-" for UTC (Coordinated Universal Time) setting. Hold the arrow key to fast forward or rewind the cursor.

In order to make the hand controller reflect your correct local time, time zone information has to be entered. Press the ◀ or ▶ key, move the cursor to the third line "UTC -300 Minute(s)" to set the time zone information (add or subtract 60 minutes per time zone). For example:

• Boston is "UTC -300 minutes"
• Los Angeles is "UTC -480 minutes"
- Rome is "UTC +60 minutes"
- Beijing is "UTC +480 minutes"
• Sydney is "UTC +600 minutes"

All the time zones in North America are "UTC –", as shown in the following table, so ensure the display shows "UTC -" instead of "UTC +" if in North or South America.

Time Zone	Hawaii	Alaska	Pacific	Mountain	Central	Eastern
Hour behind UT	-10	-9	-8	-7	-6	-5
Enter UTC	-600	-540	-480	-420	-360	-300

To adjust minutes, move the cursor to each digit and use the number keys to input the number directly. Use ▲ or ▼ key to toggle between “+” and “-”. When the time information entered is correct, press ENTER and go back to the previous screen. Note that fractional time zones can be entered.

Do not manually add or subtract an hour from displayed time to reflect Daylight Saving Time (DST). Instead please select "Y" for DST when daylight saving time begins.

For other parts of the world you can find your "time zone" information from internet.

Set Observation Site Coordinate

The third and fourth lines display the longitude and latitude coordinates, respectively. The longitude and latitude coordinates will be automatically updated when the GPS picks up satellite signals. "W/E" means western/eastern hemisphere; "N/S" means northern/southern hemisphere; "d" means degree; "m" means minute; and "s" means second.

Press ◀ or ▶ key to move the cursor and using ▲ or ▼ key to toggle between "W" and "E", "N" and "S", using number key to change the numbers. It is always a good idea to do your home work to get the GPS coordinates before traveling to a new observation site.

The site coordinates information can be found from your smart phone, GPS receiver or via the internet. Site information in decimal format can be converted into d:m:s format by multiplying the decimal numbers by 60. For example, N47.53 can be changed to N47°31'48": 47.53° = 47° +0.53°, 0.53°=0.53x60'=31.8', 0.8'=0.8x60"=48". Therefore, 47.53°=47°31'48" or 47d31m48s.

Enter Time and Site Info by Sync with your SmartPhone

When iOptron Commander Lite is in action (WiFi version ASCOM, or iOS/Android App), one may easily import the GPS info from a smartphone to the mount/hand controller. There is no worry about lacking internet, WiFi, and cell phone signals in rural areas; Commander Lite can always get GPS info from a smartphone to the HEM mount/hand controller, no dead corner. Please refer to iOptron Commander Lite for more details (https://www.ioptron.com/v/ASCOM/iOptronCommanderLiteAppNote.pdf).

Select N/S Hemisphere

The northern/southern hemisphere will be determined by your latitude coordinate, with one exception. If you are near the equator (within +/- 10°), you can choose your own N/S setting.

If the polar axis is aligned to the North Celestial Pole, then set the mount to Northern Hemisphere. If the polar axis is pointing to the South Celestial Pole, set the mount to Southern Hemisphere. Press the ◀ or ▶ key to move the cursor and use the ▲ or ▼ key to toggle between “Northern Hemisphere” and “Southern Hemisphere”.

The site information is stored inside the hand controller's memory chip. If you are not traveling to another observation site, they do not need to be changed.

Check the Hand Controller Battery

There is a real time clock in hand controller. If hand controller lost its date and time, please check the battery.

STEP 9. Perform polar alignment

BrightStar Polar Alignment

If you mount does not have an iPolar installed, or the pole star is not in sight, you may use two bright stars with Polar Iterate Align to perform a coarse polar alignment.

(1) Level the mount and set it to the Zero Position. Align the telescope to the R.A. axis of the mount. If a finder scope is used, adjust it to be parallel to the telescope optical axis.
(2) Use the HC (MENU => "Alignment" => "Polar Iterate Align") to display the azimuth and altitude position of several bright stars near the meridian. Select one that is visible at a high altitude as Alignment Star A. Follow the HC instruction to move Alignment Star A to the center of the eyepiece using a combination of the Latitude Adjustment Knob and the “◀” or “▶” buttons. Press ENTER to confirm when the star is centered. Next, select a bright star that is close to the horizon as Alignment Star B. Center it using the Azimuth Adjustment Knob and the “◀” or “▶” button (the “▲” and “▼” buttons are not used here). Press ENTER to confirm the settings.

(3) The telescope will now slew back to Alignment Star A. Repeat the steps above. The iteration can be stopped when it is determined that the alignment error has been minimized. Press the BACK button to exit the alignment procedure.

NOTE: It is highly recommended to use an eyepiece with an illuminated crosshair for accurate centering.

NOTE: The movement of the alignment star in your eyepiece may not be perpendicular depending on its location in the sky.

iPolar Polar Alignment

For a HEM44 with an iPolar, refer to iPolar Operation Manual from iOptron's website to perform the polar alignment: https://www.ioptron.com/v/manuals/3339_iPolarOperationManual.pdf.

The steps are briefly outlined below:

• Download and install iPolar Software (first time use)
  https://www.ioptron.com/v/firmware/3339_iOptron_iPolar.exe;
• Connect a miniUSB cable between the iPolar and a computer USB port;
• Click Connect and start polar alignment by following on screen instructions.

Figure 21. USB port on an iPolar electronic polar scope

4. Getting Started

In order to experience the full GOTO capability of GOTONOVA ^® technology it is very important to set up the mount correctly before observation.

4.1. Setup the Mount and Polar Alignment

Assemble your HEM44 mount according to Section 3. Mount an OTA and accessories, and balance the mount in DEC. Turn the mount power switch on. Check the date and site info. Perform polar alignment.

Always check if the mount is at the Zero Position when the mount is powered on. This include the following two parts

1. The mount is physically at Zero Position, i.e., the counterweight shaft mounting hole or CW shaft pointing to ground, OTA at the highest position with its axis parallel to the RA axis and the telescope pointing to the Celestial Pole, AND
2. The hand controller displays Zero Position.

If not, press MENU => "Zero Position" => "Search Zero Position" to find and register the Zero position. Or manually slew/adjust the mount to Zero Position, then use "Set Zero Position" to register it.

4.2. Manual Operation of the Mount

You may observe astronomical objects using the arrow keys of a Go2Nova ^® hand controller.

Flip the I/O switch on the telescope mount to turn on the mount. Use ▶,◀,▼ or ▲ buttons to point the telescope to the desired object. Use the number keys to change the slewing speed. Then press 0 button to start tracking. Press 0 button again to stop the tracking.

4.3. Go to an Object

After performing these set-ups the mount is ready to GOTO and track objects. One of the most common objects is the Moon.

To slew to an Object, such as Moon, press MENU => "Select and Slew => "Solar System => Moon => ENTER. The telescope will automatically slew to the Moon and lock on it. It will automatically begin to track once it locks on. If the Moon is not centered in your eyepiece, use the arrow keys to center the Moon.

You may also select other bright celestial objects to start with.

4.4. Sync to Target

Use this function to correct the Zero Position discrepancy and to improve the GOTO accuracy.

Press MENU => "Select and Slew" => ENTER. Browse over the catalogs and select an object. Press ENTER. After the mount slews to the star, press MENU => "Sync. To Target", follow the on-screen instruction to center the star and press ENTER. You may need to use the number keys to change the slewing speed to make the centering procedure easier.

4.5. Star Identifying Function

The 8409 hand controller has a star identifying function. After Polar Alignment and Set Up Time and Site, slew the telescope to an bright star, manually or using GOTO. Press ? button to identify the star name telescope is pointing to, as well as nearby bright stars if there are any.

4.6. Power-Down Memorization

The HEM44 mount can memorize its R.A. and DEC positions if the mount power is lost during operation, even during high speed slewing. After the power is back, just do a Select and Slew to the same star when the power is lost. The mount will continue to track the star.

4.7. Install iOptron iGuider

There are two M3 threaded holes on the side of the dovetail saddle for mounting an iOptron mini autoguiding system, iGuider. Refer to iOptron website for more information on #3360.

Close-up of a black mechanical component with two red arrows pointing to features (no text or symbols visible)

Mechanical assembly diagram showing a bracket with mounting holes and a central component (no text or symbols visible)

Close-up of a mechanical device with black components and a red cylindrical component (no visible text or symbols)

Figure 22. iGuider mini-autoguiding system

4.8. Turn Off the Mount

When you have finished your observation, simply turn the mount power off and disassemble the mount and tripod.

If the mount is set up on a pier or inside an observatory, it is recommended that you return the mount to the Zero Position or park the telescope. This will ensure that there is no need for you to perform the initial setup again when you power on the mount subsequently so long as the mount has not been moved from the parked position.

5. Complete Functions of Go2Nova ^® 8409 Hand Controller

NOTE: Not all functions from the 8409 hand controller are available for a HEM44 mount.

5.1. Slew to an Object

Press MENU => "Select and Slew." Select an object that you would like to observe and press the ENTER key.

The Go2Nova® 8409 hand controller for HEM44 mount has a database of over 212,000 objects. Use the ▶ or ◀ buttons to move the cursor. Use the number buttons to enter the number, or the ▼ or ▲ buttons to change the individual number. Hold on a button to fast scroll through the list. The “◇” indicates the object is above the horizon, and a cross mark “◇” means it is below the horizon. In some catalogs those stars below the horizon will not display on the hand controller.

5.1.1. Solar System

There are 9 objects in the Solar system catalog.

5.1.2. Deep Sky Objects

This menu includes objects outside our Solar system such as galaxies, star clusters, quasars, and nebulae.

• Named Objects: consists of 60 deep sky objects with their common names. A list of named deep sky objects is included in Appendix.
• Messier Catalog: consists of all 110 Messier objects.
• NGC Catalog: consists of 7,840 objects in NGC catalog.
• IC Catalog: consists of 5,386 objects in IC catalog.
  • UGC Catalog: consists of 12,921 objects.
  • Caldwell Catalog: consists of 109 objects.
• Abell Catalog: consists of 4076 objects.
  • Herschel Catalog: consists of 400 objects.

5.1.3. Stars:

• Named Stars: consists of 259 stars with their common names. They are listed alphabetically. A list is included in Appendix.
• Binary Stars: consists of 208 binary stars. A list is attached in Appendix.
• Hipparcos Catalog: the new HIP catalog consists of 120,404 records (2008).

5.1.4. Constellations

This catalog consists of 88 modern constellations with their names. They are listed alphabetically.

5.1.5. Comets

This catalog contains 15 comets.

5.1.6. Asteroids

This catalog contains 116 asteroids.

5.1.7. User Objects

It can store up to 60 used entered objects, including comets.

5.1.8. Enter R.A. DEC

Here you can go to a target by entering its R.A. and DEC numbers.

5.2. Sync to Target

This operation will match the telescope's current coordinates to Target Right Ascension and Declination. After slewing to an object, press MENU => "Sync to Target" => ENTER. Follow the screen to perform the sync. Using this function will re-calibrate the computer to the selected object. Multiple syncs can be performed if needed. This operation is most useful to find a faint star or nebula near a bright star.

"Sync to Target" will only work after "Select and Slew" is performed. You can change the slewing speed to make the centering procedure easier. Simply press a number (1 through 9) to change the speed. The default slew speed is 64X.

"Sync to Target" will improve the local goto accuracy around the synced star.

5.3. Alignment

5.3.1. Pole Star Position

This function displays the position of the Pole Star for Quick Polar Alignment using the iOptron® AccuAlign™ polar scope. In the Northern Hemisphere the position of Polaris is displayed, while in the Southern Hemisphere the position of Sigma Octantis is shown.

5.3.2. Polar Iterate Align

This alignment method allows you to polar align the mount even if you cannot view the Celestial Pole. Press the MENU => "Alignment" => "Polar Iterate Align". The HC will display a list of bright alignment stars near the meridian as Alignment Star A. Follow the HC instructions to move Alignment Star A to the center of the eyepiece using a combination of the Latitude Adjustment Knob and the “◀” and “▶” buttons. Press ENTER to confirm the settings. Next, select a bright star that is close to the horizon as Alignment Star B. Center it using the Azimuth Adjustment Knobs and the “◀” and “▶” buttons (the “▲” and “▼” buttons will not function). Press ENTER to confirm the settings.

The telescope will now slew back to Alignment Star A to repeat the above steps. The iteration can be stopped when it is determined that the alignment error has been minimized. Press the BACK button to exit the alignment procedure.

NOTE: It is highly recommended to use an eyepiece with illuminated crosshairs for accurate centering.

NOTE: The movement of the alignment star in your eyepiece may not be perpendicular depending on its location in the sky.

5.4. Settings

5.4.1. Set Time and Site

Refer to STEP 8 in Section 3.

5.4.2. Set Beep

The Hand Controller allows a user to turn off the beep partially, or even go to a silent mode. To change this setting press MENU => "Settings" => "Set Beep",

Set Up Time and Site
Set Beep
Set Display
Set Guiding Rate 

Select one of three available modes:

"Always On" – a beep will be heard on each button operation or mount movement;

"On but Keyboard" – a beep will be heard only when the mount is slewing to the object or there is a warning message;

"Always Off" – all sounds will be turned off, including the SUN warning message.

5.4.3. Set Display

Press MENU => "Settings" => "Set Display,"

Set Up Time and Site
Set Beep
Set Display
Set Guiding Rate 

Use the arrow keys to adjust LCD display contrast (LCD contrast), LCD backlight intensity (LCD light), and keypad's backlight intensity (Key light).

5.4.4. Set Maximum Slew Rate

This function will help the mount to slew properly under low temperature or extreme payload condition (extra long or large diameter scope). Press MENU => "Settings" => "Set Maximum Slew Rate," You can select one of three slew rates. The default is MAX.

5.4.5. Set Guiding Rate

This is an advanced function for autoguiding when a guiding camera is utilized either via a Guide Port or using the ASCOM protocol. Before autoguiding, align the polar axis carefully. Select an appropriate guiding speed. The latest firmware allows you to set the R.A. and DEC guiding speed differently. The R.A. guiding speed can be set between ±0.01X to ±0.90X sidereal rate. The DEC guiding speed can be set between ±0.10X to ±0.99X sidereal rate. Follow the instructions of your autoguiding software for detailed guiding operation. The default number is 0.5X.

The guide port wiring is shown in Figure 3, which has the same pin-out as that from Celestron / Starlight Xpress / Orion Mount / Orion/ QHY/ZWO autoguider camera.

If you have an autoguider which has a pin-out the same as the ST-I from SBIG, such as Meade/Losmandy/Takahashi/Vixen, make sure a proper guiding cable is used. Refer to your guiding camera and guiding software for detailed operation.

WARNING: DO NOT plug your ST-4 guiding camera cable into the HBX port. It will damage the mount or guiding camera electronics.

5.4.6. Set Parking Position

You may park the telescope before powering off the mount. This is very useful if the mount is on a permanent pier or the mount will not be moved in between observation sessions. The mount will keep all the alignment info and reference points.

There are five parking positions. Two positions that park the scope horizontally (Horizon Position). Two positions that park the scope vertically (Zenith Position). "Current Position" will park the scope at its current position. When the mount is turned on, it will use the last parking position setting as the default setting.

5.4.7. Set Tracking Rate

You can set up the mount tracking rate by selecting "Set Tracking Rate". Then the user can select "Automatic Rate" to let the mount choose a proper Solar/Luna/Sidereal tracking rate based on the goto target. The "User defined speed" can be adjusted from 0.9900X to 1.0100X of sidereal.

5.4.8. Meridian Treatment

This function tells the mount what to do when it tracks past the meridian. You can tell the mount if it needs a meridian flip and when to do it.

• "Set Position Limit" will tell the mount when to stop tracking or to do a meridian flip. The limit can be set at from 0^ to 15^ (60 minutes) pass meridian.
• "Set Behavior" will determine if the mount will stop tracking or perform a meridian flip at the set position limit.

5.4.9. Set Altitude Limit

This function allows the mount to keep tracking an object even if it is below the horizon but can still be seen, for example from an elevated observation site, such as a hill. The range can be set from -89^ to +89^ . The default limit is 00^ . Be careful when setting this limit. It may cause mount goto problems.

5.4.10. Wi-Fi Option

This function will display WI-FI module functions. It is useful when connect the mount via wireless connection.

Wireless Status
Restart
Restore to factory 

Click on Wireless Status: displays will show:

• SSID: HBX8409_XXXXXX
• IP: 010.010.100.254
- Port: 08899
• MAC: XX-XX-XX-XX-XX-XX

Click on Restart will restart the Wi-Fi adapter and Restore to Factory to restore the factory settings.

5.4.11. Set RA Guiding (HEM44EC Only)

You can turn off R.A. guiding by selecting "Filter R.A. Guiding" to allow the high precision encoder to correct the tracking error, or turn the R.A. guiding on by selecting "Allow RA Guiding" to allow the mount to receive guiding corrections from the autoguiding software.

5.4.12. Language

Select one of supported menu languages. Currently it has English and Chinese.

5.4.13. Enable CW Up Position

This setting will allow the CW moving to an up position. The upward angle limit is same as the meridian flipping setting, or 20 degree at maximum. When this set is enabled, the mount will goto pass the

meridian if an object is close to the meridian, within the angle limit. There will be no meridian flip when pass the meridian.

5.5. Edit User Objects

Besides various star lists available in the hand controller, you can add, edit or delete your own user-defined objects. This is especially useful for newly found comets. You can also add your favorite observation object into the user object list for easy sky surfing. Up to 60 comets and other user objects can be stored.

5.5.1. Enter a New Comet

Press MENU => "Edit User Objects" to set user objects.

User Defined Comet
Other Objects 

Select "User Defined Comet" to add/browse/delete the user-defined comet list. Find the orbit parameters of a comet in the SkyMap format. For example, the C/2012 ISON has an orbit parameter:

No.	Name	Year	M	Day	q	e	ω	Ω	I	H	G
C/2012	S1 ISON	2013	11	28.7960	0.0125050	1.0000030	345.5088	295.7379	61.8570	6.0	4.0

Select "Add a New Comet" to add a new one:

Add a New Comet
Browse Comets
Delete a Comet
Clear All Comets 

The hand controller will display the parameter entry screen:

Date: 2000-01-00.0000
q: 0.000000 e: 0.000000
ω: 000.0000 Ω: 000.0000
i: 000.0000 

Enter the parameters using the arrow buttons and number keys. Press ENTER and a confirmation screen will be displayed. Press ENTER again to store the object under the assigned user object number, or press BACK button to cancel.

5.5.2. Enter Other Objects or Observation List

Press MENU => "Edit User Objects" to set user objects.

User Defined Comet Other Objects 

Select "Other Objects" to enter you own object:

Add a New Object
Browse Objects
Delete an Object
Clear All Objects 

Select "Add a New Object". A screen will be displayed asking you to Enter R.A. and DEC coordinates:

Enter R.A. and DEC
R.A.: 00h00m00s
DEC: +00d00m00s 

You may enter the R.A. and DEC coordinates of the object you want to store, and press ENTER to confirm.

A more useful application of this function is to store your favorite viewing objects before heading to the field. When the "Enter R.A. and DEC" screen appears, press the MENU button. It brings up the catalogs that you can select the object from. Follow the screen instructions to add your favorite objects. Press BACK button to go back one level.

Press the BACK button to go back to the object entry submenu. You may review the records or delete those that are no longer wanted. Press the BACK button to finish the operation. Now you can slew to your favorite stars from "Custom Objects" catalog using "Select and Slew."

5.6. Firmware Information

This option will display the mount type, firmware version information for the hand controller (HC), R.A. board (RA), and DEC board (DEC).

5.7. Zero Position

5.7.1. Goto Zero Position

This moves your telescope to its Zero Position what hand controller thinks it should be. At the end of move, the mount needs be adjusted if the mount is not at Zero Position physically.

5.7.2. Set Zero Position

This set the Zero Position for the firmware.

The Zero Position reference may be an undefined value before the first time power on the mount, after firmware upgrade, or HC battery replacement. You can use this function to set the zero position reference.

Press the ENTER after moving the mount to Zero Position either manually or with the hand controller.

5.7.3. Search Zero Pos.

Select “Search Zero Pos.” and the mount will start to slew slowly and find the R.A. and DEC position to set the mount to the Zero Position. When the mount has found the Zero Position, the HC will ask if you want to calibrate the Zero Position. Press ENTER to confirm. Use the arrow button to adjust the mount in RA and DEC to correct the obvious discrepancy in the Zero Position. Alternatively, press BACK to cancel.

6. Maintenance and Servicing

6.1. Maintenance

Do not overload the mount. Do not drop the mount as this will damage the mount and / or permanently degrade GoTo performance and tracking accuracy. Use a wet cloth to clean the mount and hand controller. Do not use solvent.

The mount worm/gear meshing can be adjusted to accommodate payload or temperature changing. Please refer to the instruction in Appendix.

The real time clock battery in the hand controller needs be replaced if it can't keep the time after power off the mount.

If your mount is not to be used for an extended period, dismount the OTAs and counterweight(s).

6.2. iOptron Customer Service

If you have any question concerning your mount, please contact iOptron Customer Service Department. It is strongly suggested to send technical questions to [e-mail] for prompt response during off hour. Customer Service hours are 9:00 AM to 5:00 PM, Eastern Time, Monday through Friday. Call in the U.S. 1.781.569.0200.

In the unlikely event that the mount requires factory servicing or repairing, write or call iOptron Customer Service Department first to receive a RMA# before returning the mount to the factory. Please provide details as to the nature of the problem as well as your name, address, e-mail address, purchase info and daytime telephone number. We have found that most problems can be resolved by e-mails or telephone calls. So please contact iOptron first to avoid returning the mount for repair.

6.3. Product End of Life Disposal Instructions

This electronic product is subject to disposal and recycling regulations that vary by country and region. It is your responsibility to recycle your electronic equipment per your local environmental laws and regulations to ensure that it will be recycled in a manner that protects human health and the environment. To find out where you can drop off your waste equipment for recycling, please contact your local waste recycle/disposal service or the product representative.

6.4. Battery Replacement and Disposal Instructions

Battery Disposal- Batteries contain chemicals that, if released, may affect the environment and human health. Batteries should be collected separately for recycling, and recycled at a local hazardous material disposal location adhering to your country and local government regulations. To find out where you can drop off your waste battery for recycling, please contact your local waste disposal service or the product representative.

Appendix A. Technical Specifications

Mount	Hybrid Equatorial Mount (HEM)
RA gear system	StrainWave
DEC gear system	Backlash-free worm/belt system
RA reduction ratio	640:1
Payload w/o CW*	44 lbs (20kg)
Mount weight	13 lbs (5.9kg) w/o dovetail saddle13.65 lbs (6.2kg) with dovetail saddle
Payload/Mount weight	3.23
Payload with CW	55 lbs (25kg)
Structure Material	All metal, Casting + CNC machined
Periodic	270 second
PEC	Permanent PEC/Real-time PEC
Drive motor	Stepper motor
Latitude adjustment range	15^ 65^
Azimuth adjustment range	± 6^
Polar Scope	iPolarTM electronic polar scope (for A version)
Level indicator	Level bubble
Hand Controller	Go2Nova® 8409 with 212,000 objects database
Tracking	Automatic
Speed	1×,2×,8×,16×,64×,128×,256×,512×,MAX(4.5°/sec)
Power consumption	0.6A(Tracking), 1.2A(GOTO)
Power requirement	DC 12V, 5A (5.5/2.5mm DC plug)
AC adapter	100V ~ 240V (included, indoor use only)
Power off brake	Electronic friction brake
Power-down memory	Yes
Wi-Fi	Built-in
Communication port	Yes (USB and Wi-Fi)
Autoguide port	Yes (ST-4 compatible)
Firmware upgrade	Yes
Computer control	Yes
Dovetail saddle	Vixen/Losmandy convertible
Counterweight shaft	SS Φ20mmX200mm, M16 threaded (optional)
Counterweight	10 lb (4.5kg) (optional)
Tripod	Optional
Autoguider	Optional external iGuider
Operation temperature	-20°C ~ 40°C (hand controller -10°C ~ 40°C)
Warranty	Two year limited

* Payload calculated with payload center of gravity to the RA rotation axis is 200mm.

Figure 23 Distance between HEM44 RA axis and base of dovetail saddle

Appendix B. Go2Nova® 8409 HC MENU STRUCTURE

graph TD
    A["MENU"] --> B["Select and Slew"]
    B --> C["Solar System"]
    C --> D["Mercury"]
    C --> E["Venus"]
    C --> F["Mars"]
    C --> G["Jupiter"]
    C --> H["Saturn"]
    C --> I["Uranus"]
    C --> J["Neptune"]
    C --> K["Sun"]
    C --> L["Moon"]
    B --> M["Deep Sky Objects"]
    M --> N["Named Object"]
    M --> O["Messier Catalog"]
    M --> P["NGC"]
    M --> Q["IC"]
    M --> R["PGC"]
    M --> S["Caldwell Catalog"]
    M --> T["Abell Catalog"]
    M --> U["Herschel Catalog"]
    B --> V["Stars"]
    V --> W["Named Stars"]
    V --> X["Double/Multi Stars"]
    V --> Y["Hipparcors Catalog"]
    B --> Z["Comets"]
    Z --> AA["Asteroids"]
    Z --> AB["Constellations"]
    Z --> AC["Custom Objects"]
    AC --> AD["User Defined Comets"]
    AC --> AE["Other Objects"]
    B --> AF["Custom R.A. and DEC"]
    AF --> AG["Sync. To Target"]
    B --> AH["Alignment"]
    AH --> AI["Position of Pole Star"]
    AH --> AJ["Polar Interate Align"]

graph TD
    A["Settings"] --> B["Set Time and Site"]
    A --> C["Set Beep"]
    A --> D["Set Display"]
    A --> E["Set Maximum Slew Rate"]
    A --> F["Set Guiding Rate"]
    A --> G["Set Parking Position"]
    A --> H["Set Tracking Rate"]
    H --> I["Automatic Rate"]
    H --> J["User Defined Speed"]
    A --> K["Meridian Treatment"]
    K --> L["Set Position Limit"]
    K --> M["Set Behavior"]
    A --> N["Set Altitude Limit"]
    A --> O["Wi-Fi Option"]
    A --> P["GPS Status"]
    A --> Q["Set RA Guiding"]
    A --> R["Language"]
    A --> S["Enable CW Up Pos."]
    A --> T["Park Telescope"]
    A --> U["Edit User Objects"]
    U --> V["User Defined Comet"]
    U --> W["Other Objects"]
    A --> X["Firmware Information"]
    A --> Y["Zero Position"]
    Y --> Z["Goto Zero Position"]
    Y --> AA["Set Zero Position"]
    Y --> AB["Search Zero Position"]

Some functions are mount dependent.

Appendix C. Gear Switch Meshing Adjustment

One may adjust a HEM44 DEC gear meshing, although it may not be necessary in most of the cases. If you experienced DEC motor stall occasionally, or there is a small free play between the worm and gear, follow this instruction to adjust the gear meshing.

Tool needed: 2mm and 3mm hex keys.

1. Gear Switch

iOptron Gear Switch uses a spring plunger to apply the force for gear meshing. It has a tuning knob, body, threaded spring plunger, positioning spring and ball bearing.

2. Spring plunger position related to meshing result

graph TD
    A["0 Disengaged position"] --> B["1 Not touched. There will be free play"]
    B --> C["2 Just touched. Minimum meshing force. No free play"]
    C --> D["3 Engaged position. Normal operation position"]
    D --> E["4 Plunger adjusted too much. Ball had been pushed all the way in and no spring loading power"]

The gear switch should be adjusted to a position that between 2 and 4.

3. To Adjust DEC Gear

Disengage DEC gear switch. Rotate DEC saddle to exposure the small hole (3mm in diameter) that is blocked by the dovetail saddle. Another larger hole (5mm) is located on the side of the DEC gear housing. There is a set screw inside the 3mm hole to lock the gear meshing adjustment plunger, which is inside the larger hole.

Engage the worm/gear by turn the gear switch to locking position.

Close-up of a black mechanical component with a curved knob and mounting holes (no visible text or symbols)

Insert the 2mm hex key into the small hole on the top. Gently turn the hex key until you feel it is engaged to the set screw inside. You may turn the gear switch further in the lock position if the wrench can't engage the set screw. Turn the set screw half a turn counterclockwise to release it.

Close-up of a mechanical component with a yellow arrow indicating a curved motion or force, no visible text or symbols.

Adjust the gear meshing adjustment plunger on the side inside the large hole by using the 3mm hex key. Turn counterclockwise to loosen the meshing or turn clockwise to tighten the meshing.

Close-up of a black electronic device with a yellow arrow pointing to a component, no visible text or symbols.

If the motor stalls or the mount does not tracking smoothly, most likely the meshing is too tight. You may loosen it by about 1/8 turn (or less for tracking).

Tighten the set screw in the small hole to LOCK the gear screw (important) before test the mount.

Adjust again if needed, but no more than 14 turn in total.

If you feel there is free play between the worm and gear, you may tighten the meshing adjustment plunger to see if it can be eliminated. If not, contact iOptron for service.

NEVER turn the plunger all the way in. It may get gear switch stuck or damage the worm assembly.

Appendix D. Firmware Upgrade

The firmware in the 8409 hand controller and motor control boards can be upgraded by the customer. Please check iOptron's website, www.iOptron.com, under the product page or Support Directory.

Appendix E. Computer Control an HEM44 Mount

The HEM44 mount can be controlled by a SmartPhone, a Tablet or a computer. It is supported by two types of computer connections:

• Connect to a computer via USB port on hand controller. The mount can be controlled via ASCOM protocol (Windows OS), or directly by some software, such as Sky Safari (Mac OS)
• Connect wirelessly via built-in wireless connection. The mount can be controlled via ASCOM protocol (Windows OS), SmartPhone/Tablet and MacOS wirelessly.

To control the mount via ASCOM protocol, you need:

1. Download and install the latest ASCOM Platform from http://www.ascom-standards.org/. Make sure your PC meets the software requirement.
2. Download and install the latest iOptron Commander/ASCOM drive for HEM44 from iOptron website. The HEM44 uses Commander V8.0 or later.
3. Planetarium software that supports ASCOM protocol. Follow software instructions to select the iOptron Telescope.

Please refer to iOptron website, www.iOptron.com, under the product page, or Support Directory, iOptron ASCOM Driver for more detail.

iOptron Commander 8.0 for Windows

iOptron Commander Lite for iOS

Appendix F. Go2Nova ^® Star List

Named Deep Sky Object

ID No.	OBJECT ID No.	OBJECT
1	Andromeda Galaxy 31	Hind's Variable		Nebula
2	Barrards Galaxy 32	Hubble's Variable		Nebula
3	Beehive Cluster 33	Integral Sign Galaxy
4	Blackeye Galaxy 34	Jewel Box Cluster
5	Blinking Planetary Nebula 35			Keyhole Nebula
6		Blue Flash Nebula		36 Lagoon Nebula
7		Blue Planetary		37	Little Gem
8		Blue Snowball Nebula		38	Little Gem Nebula
9	Box Nebula	39		Little Ghost Nebula
10		Bubble Nebula		40	North American Nebula
11		Bipolar Nebula		41	Omega Nebula
12		Butterfly Cluster		42	Orion Nebula
13		California Nebula 43 Owl Nebula
14		Cat's Eye Nebula 44 Pelican Nebula
15		Cocoon Nebula		45	Phantom Streak Nebula
16	Cone Nebula 46 Pinwheel Galaxy
17		Cork Nebula		47	Pleiades
18		Crab Nebula		48	Ring Nebula
19		Crescent Nebula		49	Ring Tail Galaxy
20		Draco Dwarf		50	Rosette Nebula
21	Duck Nebula			51	Saturn Nebula
22		Dumbbell Nebula		52	Sextans B Dwarf
23		Eagle Nebula		53	Small Magellanic Cloud
24		Eight-Burst Nebula		54	Sombrero Galaxy
25		Eskimo Nebula		55 Spindle Galaxy
26	Flaming Star Nebula			56	Tank Track Nebula
27		Ghost of Jupiter		57	Trifid Nebula
28		Great Cluster		58	Ursa Minor Dwarf
29		Helix Nebula		59	Whirlpool Galaxy
30		Hercules Galaxy Cluster		60	Wild Duck Cluster

Messier Catalog

Grid of 30 astronomical images showing various types of galaxies and star fields in deep space (no text or symbols)

This table is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article List of Messier objects

Named Star

1	Acamar	50	Alrescha	99	Deneb el Okab	148	Lalande 21185
2	Achernar	51	Alshain	100	Deneb Kaitos	149	Lesath
3	Achird 52 Altair 101 Denebakrab 150 Mahasim
4	Acrab	53	Altais	102	Denebola	151	Maia
5	Acrux A	54	Alterf	103	Dschubba	152	Marfik
6	Acrux B	55	Aludra	104	Dubhe	153	Marfikent
7	Acubens	56	Alula Australis	105	Edasich	154	Markab
8	Adhafera	57	Alula Borealis	106	El Rehla	155	Markeb
9	Adhara	58	Alya	107	Electra	156	Matar
10	Adid Australis	59	Ancha	108	Elnath	157	Mebsuta
11	Ahadi	60	Ankaa	109	Eltanin	158	Megrez
12	Al Dhanab	61	Antares	110	Enif	159	Meissa
13	Al Dhibain Prior	62	Apollyon	111	Errai	160	Mekbuda
14	Al Kab	63	Arcturus	112	Fomalhaut	161	Menkalinan
15	Al Nair	64	Arkab Prior	113	Furud	162	Menkar
16	Al Nair al Baten	65	Arneb	114	Gacrux	163	Menkent
17	Al Niyat(Sigma)	66	Ascella	115	Gatria	164	Menkib
18 Al	Niyat(Tau) 67		Asellus Austral	116	Giausar	165	Merak
19	Albaldah	68	Asellus Boreali	117	Gienah Corvi	166	Merope
20	Albali	69	Aspidiske	118	Gienah Cygni	167	Mesartim
21	Albireo	70	Atik	119	Girtab	168	Miaplacidus
22	Alchiba	71	Atlas	120	Gliese 1	169	Mimosa
23	Alcor	72	Atria	121	Gomeisa	170	Mintaka
24	Alcyone	73	Avior	122	Graffias(Zeta)	171	Mira
25	Aldebaran	74	Azha	123	Groombridge 1830	172	Mirach
26	Alderamin	75	Barnard's Star	124	Gruid	173	Mirfak
27	Alfirk	76	Baten Kaitos	125	Grumium	174	Mirzam
28	Algenib	77	Beid	126	Hadar	175	Mizar
29	Algenubi	78	Bellatrix	127	Hamal	176	Mu Velorum
30	Algieba	79	Beta Hydri	128	Han	177	Muhlifain
31	Algiedi Secunda	80	Betelgeuse	129	Hatsya	178	Muphrid
32	Algol	81	Betria	130	Head of Hydrus	179	Muscida
33	Algorab	82	Biham	131	Homam	180	Naos
34	Alhakim	83	Birdun	132	Iritjinga(Cen)	181	Nashira
35	Alhena	84	Canopus	133	Izar	182	Navi
36	Alioth	85	Capella	134	Kakkab Su-gub Gud-Elim	183	Nekkar
37	Alkaid	86	Caph	135	Kapteyn's Star	184	Nihal
38	Alkalurops	87	Castor A	136	Kaus Australis	185	Nunki
39	Alkes	88	Castor B	137	Kaus Borealis	186	Nusakan
40	Almaaz	89	Cebalrai	138	Kaus Media	187	Palida
41	Almach	90	Chara	139	Keid	188	Peacock
42	Alnasl	91	Chertan	140	Kekouan	189	Phact
43	Alnilam	92	Choo	141	Kitalpha	190	Phecda
44	Alnitak	93	Cor Caroli	142	Kochab	191	Pherkad
45	Alpha Muscae	94	Cursa	143	Koo She	192	Polaris
46	Alpha Tucanae	95	Dabih	144	Kornephoros	193	Pollux
47	Alphard	96	Deltotum	145	Kraz	194	Porrima
48	Alphecca	97	Deneb	146	Kurhah	195	Procyon
49	Alpheratz	98	Deneb Algedi	147	Lacaille 9352	196	Propus
197	Proxima Centauri	213	Sadalbari	229	Sulafat	245	Vindemiatrix
198	Rasalas	214	Sadalmelik	230	Syrma	246	Vrischika
199	Rasalgethi	215	Sadalsuud	231	Talitha	247	Wasat
200	Rasalhague	216	Sadr	232	Tania Australis	248	Wazn
201	Rastaban	217	Saiph	233	Tania Borealis	249	Wei
202	Regor	218	Sargas	234	Tarazed	250	Wezen
203	Regulus	219	Scheat	235	Taygeta	251	Yed Posterior
204	Rigel	220	Schedar	236	Tejat Posterior	252	Yed Prior
205	Rigel Kentaurus A	221	Seginus	237	Thuban	253	Zaniah
206	Rigel Kentaurus B	222	Shaula	238	Thusia	254	Zaurak
207	Ruchbah	223	Sheliak	239	Tien Kwan	255	Zavijava
208	Rukbat	224	Sheratan	240	Turais	256	Zeta Persei
209	Rukh	225	Sirius	241	Unukalhai	257	Zosma
210	Rutilicus	226	Skat	242	Vasat-ul-cemre	258	Zubenelgenubi
211	Sabik	227	Spica	243	Vathorz Posterior	259	Zubeneschamali
212	Sadachbia	228	Suhail	244	Vega

Modern Constellations

No.	Constellation Abbreviation
1	Andromeda And
2	Antlia Ant
3	Apus Aps
4	Aquarius Aqr
5	Aquila Aql
6	Ara Ara
7	Aries Ari
8	Auriga Aur
9	Boötes Boo
10	Caelum Cae
11	Camelopardalis	Cam
12	Cancer	Cnc
13	Canes Venatici	CVn
14	Canis Major	CMa
15	Canis Minor	CMi
16	Capricornus	Cap
17	Carina	Car
18	Cassiopeia	Cas
19	Centaurus	Cen
20	Cepheus	Cep
21	Cetus	Cet
22	Chamaeleon	Cha
23	Circinus Cir
24	Columba Col
25	Coma Berenices	Com
26	Corona Australis	CrA
27	Corona Borealis	CrB
28	Corvus	Crv
29	Crater	Crt
30	Crux	Cru
31	Cygnus Cyg
32	Delphinus	Del
33	Dorado Dor
34	Draco	Dra
35	Equuleus	Equ
36	Eridanus Eri
37	Fornax For
38	Gemini	Gem
39	Grus Gru
40	Hercules	Her
41	Horologium	Hor
42	Hydra Hya
43	Hydrus Hyi
44	Indus Ind

No.	Constellation Abbreviation
45	Lacerta Lac
46	Leo Leo
47	Leo Minor LMi
48	Lepus Lep
49	Libra Lib
50	Lupus Lup
51	Lynx Lyn
52	Lyra Lyr
53	Mensa Men
54	Microscopium	Mic
55	Monoceros	Mon
56	Musca	Mus
57	Norma Nor
58	Octans	Oct
59	Ophiuchus Oph
60	Orion Ori
61	Pavo Pav
62	Pegasus	Peg
63	Perseus	Per
64	Phoenix	Phe
65	Pictor Pic
66	Pisces Psc
67	Piscis Austrinus	PsA
68	Puppis	Pup
69	Pyxis	Pyx
70	Reticulum	Ret
71	Sagitta Sge
72	Sagittarius	Sgr
73	Scorpius	Sco
74	Sculptor Scl
75	Scutum	Sct
76	Serpens Ser
77	Sextans	Sex
78	Taurus	Tau
79	Telescopium	Tel
80	Triangulum	Tri
81	Triangulum Australe	TrA
82	Tucana Tuc
83	Ursa Major	UMa
84	Ursa Minor UMi
85	Vela	Vel
86	Virgo Vir
87	Volans	Vol
88	Vulpecula	Vul

Double/Multi Stars

No. HC Item Constellation Name HIP WDS SAO
1 Rigel Kentaurus A Alpha Centauri Centaurus 7			1683 14396-6050	252838
2	Rigel	Beta Orionis	Orion		24436	05145-0812	131907
3	Gacrux	Gamma Crucls	Crux		61084	12312-5707	240019
4	Sargas	Theta Scorpii	Scorpius		86228	17373-4300	228201
5	Castor A	Alpha Geminorum	Gemini		36850	07346+3153	60198
6	Mizar	Zeta Ursae Majoris	Ursa Major		65378	13239+5456	28737
7	Almach	Gamma Andromedae	Andromeda		9640	02039+4220	37735
8	Algieba	Gamma Leonis	Leo		50583	10200+1950	81298
9	Aludra	Eta Canis Majoris	Canis Major		35904	07241-2918	173651
10	Iritjinga (Cen)	Gamma Centauri	Centaurus	Muhlifain	61932	12415-4858	223603
11	Zubenelgenubi	Alpha Librae	Libra		72603	14509-1603	158836
12	Alcyone	Eta Tauri	Taurus		17702	03475+2406	76199
13 Cor Caroli		Alpha Canum Venatico	Canes Venatici		63125	12560+3819	63257
14	Acamar	Theta Eridani	Eridanus		13847	02583-4018	216113
15	Adhafera	Zeta Leonis	Leo		50335	10167+2325	81265
16	Rasalgethi	Alpha Herculis	Hercules		84345	17146+1423	102680
17	Meissa	Lambda Orionis	Orion		26207	05351+0956	112921
18	Graffias	Beta1 Scorpii	Scorpius		78820	16054-1948	159682
19	Alya	Theta Serpentis	Serpens		92946	18562+0412	124068
20	HIP 48002	Upsilon Carinae	Carina	Vathorz Prior		09471-6504	250695
21	HIP 95947	Beta1 Cygni	Cygnus	Albireo		19307+2758	87301
22	HIP 20894	Theta2 Tauri	Taurus			04287+1552	93957
23	HIP 74395	Zeta Lupi	Lupus			15123-5206	242304
24	HIP 27072	Gamma Leporis	Lupus			05445-2227	170759
25	HIP 26549	Sigma Orionis	Orion			05387-0236	132406
26	HIP 85667	HD 158614	Ophiuchus			17304-0104	141702
27	HIP 74376	Kappa1 Lupi	Lupus			15119-4844	225525
28	HIP 34481	Gamma2 Volantis	Carina			07087-7030	256374
29	HIP 53253	u Carinae	Carina			10535-5851	238574
30	HIP 99675	Omicron1 Cygni	Cygnus	31 Cyg		20136+4644	49337
31	HIP 63003	Mu1 Crucis	Crux			12546-5711	240366
32	HIP 43103	Iota Cancri	Cancer	48 Cnc		08467+2846	80416
33	HIP 110991	Delta Cephei	Cepheus	27 Cep		22292+5825	34508
34	HIP 20635	Kappa1 Tauri	Taurus	65 Tau		04254+2218	76601
35	HIP 88601	70 Ophiuchi	Orion			18055+0230	123107
36	HIP 2484	Beta1 Tucanae	Horologium			00315-6257	248201
37	HIP 91971	Zeta1 Lyrae	Cygnus	6 Lyr		18448+3736	67321
38	HIP 79374	Nu Scorpii	Scorpius	Jabbah		16120-1928	159764
39	HIP 102532	Gamma2 Delphini	Pegasus	12 Del		20467+1607	106476
40	HIP 52154	x Velorum	Vela			10393-5536	238309
41	HIP 37229	HD 61555	Canis Major			07388-2648	174198
42	HIP 30419	Epsilon Monocerotis	Orion	8 Mon		06238+0436	113810
43	HIP 108917	Xi Cephei	Cepheus.	Al kurhah		22038+6438	19827
44	HIP 53417	54 Leonis	Leo			10556+2445	81584
45	HIP 65271	J Centauri	Centaurus			13226-6059	252284
46	HIP 67669	3 Centauri	Centaurus			13518-3300	204916
47	HIP 105319	Theta Indl	Indus			21199-5327	246965
48	HIP 80582	Epsilon Normae	Norma			16272-4733	226773
49	HIP 8832	Gamma Arietis	Aries			01535+1918	92680
50	HIP 69483	Kappa Boötis	Boötes	Asellus Tertius		14135+5147	29045
51	HIP 92946	Theta Serpentis	Serpens			18562+0412	124068
52	HIP 86614	Psi1 Draconis	Draco	31 Draconis		17419+7209	8890

No. HC Item Constellation Name HIP WDS SAO

53 H	P 95771 Alpha Vulpeculae Vulpecula Anser		19287+2440 87261
54	HIP 30867	Beta Monocerotis	Monoceros			06288-0702	133316
55	HIP 35363	NV Puppis	Puppis			07183-3644	197824
56	HIP 94761	Gliese 752	Aquila	Wolf 1055, Ross 652		19169+0510
57 H	P 21683 Sigma2 Tauri Taurus			04393+	1555 94054
58	HIP 8497	Chi Ceti	Cetus	53 Cet		01496-1041	148036
59	HIP 26199	HD 36960	Orion			05350-0600	132301
60	HIP 104521	Gamma Equulei	Equuleus	5 Equ		21103+1008	126593
61	HIP 116389	Iota Phoenicis	Phoenix			23351-4237	231675
62	HIP 17797	HD 24071	Eridanus			03486-3737	194550
63	HIP 21036	83 Tauri	Taurus			04306+1343	93979
64	HIP 107310	Mu1 Cygni	Cygnus	78 Cyg		21441+2845	89940
65	HIP 72659	Xi Boötis	Boötes	37 Boo		14514+1906	101250
66	HIP 21029	HD 28527	Taurus			04306+1612	93975
67	HIP 42726	HY Velorum	Vela			08424-5307	236205
68	HIP 18255	32 Eridani	Eridanus			03543-0257	130806
69	HIP 9153	Lambda Arietis	Aries			01580+2336	75051
70	HIP 88267	95 Herculis	Hercules			18015+2136	85648
71	HIP 85829	Nu2 Draconis	Draco	25 Dra		17322+5511	30450
72	HIP 43937	V376 Carinae	Carina	b1 Carinae		08570-5914	236436
73	HIP 71762	Pi2 Boötis	Boötes	29 Boo		14407+1625	101139
74	HIP 80047	Delta1 Apodis	Apus			16203-7842	257380
75 H	P 58484	Epsilon Chamaeleontis	Chamaeleon			11596-7813	256894
76	HIP 25142	23 Orionis	Orion			05228+0333	112697
77	HIP 54204	Chi1 Hydrae	Hydra			11053-2718	179514
78	HIP 76669	Zeta Coronae Borealis	Corona Borealis	7 CrB		15394+3638	64833
79	HIP 99770	b3 Cygni	Cygnus	29 Cyg		20145+3648	69678
80	HIP 101027	Rho Capricorni	Capricornus	11 Cap		20289-1749	163614
81	HIP 74911	Nu Lupi	Lupus			15185-4753	225638
82	HIP 35210	HD 56577	Canis Major			07166-2319	173349
83	HIP 26235	Theta2 Orionis	Orion	43 Ori		05354-0525	132321
84	HIP 40321	OS Puppis	Puppis			08140-3619	198969
85	HIP 70327	HD 126129	Boötes			14234+0827	120426
86	HIP 26221	Theta1 Orionis	Orion	Trapezium		05353-0523	132314
87	HIP 80473	Rho Ophiuchi	Ophiuchus	5 Oph		16256-2327	184381
88	HIP 78105	Xi1 Lupi	Lupus			15569-3358	207144
89	HIP 79043	Kappa Herculis	Hercules	7 Her		16081+1703	101951
90	HIP 61418	24 Comae Berenices	Coma Berenices			12351+1823	100160
91	HIP 91919	Epsilon Lyrae	Lyra	4 Lyr		18443+3940	67309
92	HIP 41639	HD 72127	Vela			08295-4443	219996
93	HIP 104214	61 Cygni	Cygnus			21069+3845	70919
94	HIP 23734	11 Camelopardalis	Camelopardalis			05061+5858	25001
95	HIP 60189	Zeta Corvi	Corvus	5 Crv		12206-2213	180700
96	HIP 66821	Q Centauri	Centaurus			13417-5434	241076
97	HIP 14043	HD 18537	Perseus			03009+5221	23763
98	HIP 5737	Zeta Piscium	Pisces	86 Psc		01137+0735	109739
99	HIP 84626	Omicron Ophiuchi	Ophiuchus	39 Oph		17180-2417	185238
100	HIP 60904	17 Comae Berenices	Coma Berenices			12289+2555	82330
101	HIP 58684	67 Ursae Majoris	Ursa Major			12021+4303	44002
102	HIP 5131	Psi1 Piscium	Pisecs	74 Psc		01057+2128	74482
103	HIP 115126	94 Aquarii	Aquarius			23191-1328	165625
104	HIP 62572	HD 112028	Camelopardalis			12492+8325	2102
No. HC Item Constellation Name HIP WDS SAO
105 H	HIP 40167 Zeta1 Candri Cancer Tegmen 08122+1739 97645
106	HIP 40817	Kappa Volantis	Volans			08198-7131	256497
107	HIP 81292	17 Draconis	Draco			16362+5255	30013
108	HIP 80197	Nu1 Coronae Borealis	Corona Borealis			16224+3348	65257
109	HIP 88060	HD 163756	Sagittarius			17591-3015	209553
110	HIP 42637	Eta Chamaeleontis	Chamaeleon			08413-7858	256543
111	HIP 21039	81 Tauri	Taurus			04306+1542	93978
112	HIP 100965	75 Draconis	Draco			20282+8125	3408
113	HIP 25768	HD 36553	Pictor			05302-4705	217368
114	HIP 93717	15 Aquilae	Aquila			19050-0402	142996
115	HIP 79980	HD 148836	Scorpius			16195-3054	207558
116	HIP 12086	15 Trianguli	Triangulum			02358+3441	55687
117 H	HIP 90968	Kappa2 Coronae Austra	Corona Australis			18334-3844	21029
118	HIP 22531	Iota Pictoris	Pictor			04509-5328	233709
119	HIP 34065	HD 53705	Puppis			07040-4337	218421
120 H	HIP 79607	Sigma Coronae Boreali	Corona Borealis			16147+3352	65165
121	HIP 109786	41 Aquarii	Aquarius			22143-2104	190986
122	HIP 56280	17 Crateris	Hydra			11323-2916	179968
123	HIP 51561	HD 91355	Vela			10320-4504	222126
124	HIP 107930	HD 208095	Cepheus			21520+5548	33819
125	HIP 97966	57 Aquilae	Aquila			19546-0814	143898
126	HIP 117218	107 Aquarii	Aquarius.			23460-1841	165867
127	HIP 82676	HD 152234	Scorpius			16540-4148	227377
128	HIP 111546	8 Lacertae	Lacerta			22359+3938	72509
129	HIP 29151	HD 42111	Orion			06090+0230	113507
130	HIP 107253	79 Cygni	Cygnus			21434+3817	71643
131	HIP 88136	41 Draconis	Draco			18002+8000	8996
132	HIP 81702	HD 150136	Ara			16413-4846	227049
133	HIP 97423	HD 186984	Sagittarius			19480-1342	162998
134	HIP 30444	HD 45145	Columba			06240-3642	196774
135	HIP 66400	HD 118349	Hydra			13368-2630	181790
136	HIP 17579	21 Tauri	Taurus	Asterope		03459+2433	76159
137	HIP 35785	19 Lyncis	Lynx			07229+5517	26312
138	HIP 81641	37 Herculis	Hercules			16406+0413	121776
139	HIP 7751	p Eridani	Eridanus			01398-5612	232490
140 H	HIP 21148 1 Camelopardalis Camelopardalis			04320+5355 24672
141	HIP 9021	56 Andromedae	Andromeda			01562+3715	55107
142	HIP 97816	HD 187420	Telescopium			19526-5458	246311
143	HIP 88818	100 Herculis	Hercules			18078+2606	85753
144	HIP 36817	HD 60584	Puppis			07343-2328	174019
145	HIP 25695	HD 35943	Taurus			05293+2509	77200
146	HIP 98819	15 Sagittae	Sagitta			20041+1704	105635
147	HIP 61910	VV Corvi	Corvus			12413-1301	157447
148	HIP 111643	Sigma2 Gruis	Grus			22370-4035	231217
149	HIP 80399	HD 147722	Scorpius			16247-2942	184368
150	HIP 83478	HD 154228	Hercules			17037+1336	102564
151	HIP 101123	Omicron Capricomi	Capricornus			20299-1835	163626
152	HIP 28271	59 Orionis	Orion			05584+0150	113315
153 H	HIP 64246	17 Canum Venaticicoru	Canes Venatici			13101+3830	63380
154	HIP 96895	16 Cygni	Cygnus			19418+5032	31898
155	HIP 35564	HD 57852	Carina			07204-5219	235110
156	HIP 37843	2 Puppis	Puppis			07455-1441	153363

No. HC Item Constellation Name HIP WDS SAO

157	HIP 28790 HD 41742	Puppis 06047-4505 217	706
158	HIP 4675	HD 5788	Andromeda			01001+4443	36832
159	HIP 31676	8 Lyncis	Lynx			06377+6129	13897
160	HIP 10176	59 Andromedae	Andromeda			02109+3902	55330
161	HIP 25950	HD 36408	Taurus			05322+1703	94630
162	HIP 117931	AL Sculptoris	Sculptor			23553-3155	214860
163	HIP 81914	HD 150591	Scorpius			16439-4107	227123
164	HIP 21242	m Persei	Perseus			04334+4304	39604
165	HIP 86831	61 Ophiuchi	Ophiuchus			17446+0235	122690
166	HIP 115272	HD 220003	Grus			23208-5018	247838
167	HIP 46657	Zeta1 Antliae	Antlia			09308-3153	200444
168	HIP 41404	Phi2 Cancri	Cancer			08268+2656	80188
169	HIP 29388	41 Aurigae	Auriga			06116+4843	40925
170	HIP 49321 HD 87344	Hydra		10040-1806	155704
171	HIP 84054	63 Herculis	Hercules			17111+2414	84896
172	HIP 39035 HD 66005	Puppis 07592-4959 219	249
173	HIP 25303	Theta Pictoris	Pictor			05248-5219	233965
174	HIP 52520 HD 93344	Carina		10443-7052	256750
175	HIP 95398	2 Sagittae	Sagitta			19244+1656	104797
176	UCAC4 277-135548
177	HIP 32609	HD 48766	Lynx			06482+5542	25963
178	HIP 101765	48 Cygni	Cygnus			20375+3134	70287
179	HIP 24825	YZ Leporis	Lepus			05193-1831	150335
180	HIP 31158	21 Geminorum	Gemini			06323+1747	95795
181	HIP 3885	65 Piscium	Pisces			00499+2743	74295
182	HIP 93371	HD 176270	Australis			19011-3704	210816
183	HIP 36345 HD 59499	Puppis 07289-3151 198	038
184	HIP 108364	HD 208947	Cepheus			21572+6609	19760
185	HIP 50939	HD 90125	Sextans			10242+0222	118278
186	HIP 76603	HD 139461	Libra			15387-0847	140672
187	HIP 32269 HD 49219	Carina		06442-5442	234683
188	HIP 42516	39 Cancri	Cancer			08401+2000	80333
189	HIP 62807	32 Comae Berenices	Coma Berenices			12522+1704	100309
190	UCAC4 226-128246
191	HIP 94913	24 Aquilae	Aquila			19188+0020	124492
192	HIP 94336	HD 179958	Cygnus			19121+4951	48193
193	HIP 107299	HD 206429	Indus			21440-5720	247151
194	HIP 59984	HD 106976	Virgo			12182-0357	138704
195	HIP 16411	HD 21743	Taurus			03313+2734	75970
196	HIP 23287 HD 32040	Orion		05006+0337	112305
197	HIP 105637	HD 203857	Cygnus			21238+3721	71280
198	HIP 108925	HD 209744	Cepheus			22039+5949	34016
199	HIP 103814	HD 200011	Microscopium			21022-4300	230492
200	HIP 58112	65 Ursae Majoris	Ursa Major			11551+4629	43945
201	HIP 109354	V402 Lacertae	Lacerta			22093+4451	51698
202	HIP 43822	17 Hydrae	Hydra			08555-0758	136409
203	HIP 21986	55 Eridani	Eridanus			04436-0848	131442
204	HIP 17470	HD 23245	Taurus			03446+2754	76122
205	HIP 35960 V368 Puppis	Puppis 07248-3717 197974
206	HIP 42936	HD75086	Carina			08451-5843	236241
207	HIP 19272	SZ Camelopardalis	Camelopardalis			04078+6220	13031
208	HIP 76143	HD 138488	Libra			15332-2429	183565

IOPTRON TWO YEAR TELESCOPE, MOUNT, AND CONTROLLER WARRANTY

A. iOptron warrants your telescope, mount, or controller to be free from defects in materials and workmanship for two years. iOptron will repair or replace such product or part which, upon inspection by iOptron, is found to be defective in materials or workmanship. As a condition to the obligation of iOptron to repair or replace such product, the product must be returned to iOptron together with proof-of-purchase satisfactory to iOptron.

B. The Proper Return Merchant Authorization Number must be obtained from iOptron in advance of return. Call iOptron at 1.781.569.0200 to receive the RMA number to be displayed on the outside of your shipping container.

All returns must be accompanied by a written statement stating the name, address, and daytime telephone number of the owner, together with a brief description of any claimed defects. Parts or product for which replacement is made shall become the property of iOptron.

The customer shall be responsible for all costs of transportation and insurance, both to and from the factory of iOptron, and shall be required to prepay such costs.

iOptron shall use reasonable efforts to repair or replace any telescope, mount, or controller covered by this warranty within thirty days of receipt. In the event repair or replacement shall require more than thirty days, iOptron shall notify the customer accordingly. iOptron reserves the right to replace any product which has been discontinued from its product line with a new product of comparable value and function.

This warranty shall be void and of no force of effect in the event a covered product has been modified in design or function, or subjected to abuse, misuse, mishandling or unauthorized repair. Further, product malfunction or deterioration due to normal wear is not covered by this warranty.

IOPTRON DISCLAIMS ANY WARRANTIES, EXPRESS OR IMPLIED, WHETHER OF MERCHANTABILITY OF FITNESS FOR A PARTICULAR USE, EXCEPT AS EXPRESSLY SET FORTH HERE. THE SOLE OBLIGATION OF IOPTRON UNDER THIS LIMITED WARRANTY SHALL BE TO REPAIR OR REPLACE THE COVERED PRODUCT, IN ACCORDANCE WITH THE TERMS SET FORTH HERE. IOPTRON EXPRESSLY DISCLAIMS ANY LOST PROFITS, GENERAL, SPECIAL, INDIRECT OR CONSEQUENTIAL DAMAGES WHICH MAY RESULT FROM BREACH OF ANY WARRANTY, OR ARISING OUT OF THE USE OR INABILITY TO USE ANY IOPTRON PRODUCT. ANY WARRANTIES WHICH ARE IMPLIED AND WHICH CANNOT BE DISCLAIMED SHALL BE LIMITED IN DURATION TO A TERM OF TWO YEARS FROM THE DATE OF ORIGINAL RETAIL PURCHASE.

Some states do not allow the exclusion or limitation of incidental or consequential damages or limitation on how long an implied warranty lasts, so the above limitations and exclusions may not apply to you.

This warranty gives you specific legal rights, and you may also have other rights which vary from state to state.

iOptron reserves the right to modify or discontinue, without prior notice to you, any model or style telescope.

If warranty problems arise, or if you need assistance in using your telescope, mount, or controller contact:

iOptron Corporation

Customer Service Department

6E Gill Street

Woburn, MA 01801

www.ioptron.com

[e-mail]

Tel. [phone]

Fax. [phone]

Monday-Friday 9AM-5PM EST

NOTE: This warranty is valid to U.S.A. and Canadian customers who have purchased this product from an authorized iOptron dealer in the U.S.A. or Canada or directly from iOptron. Warranty outside the U.S.A. and Canada is valid only to customers who purchased from an iOptron Distributor or Authorized iOptron Dealer in the specific country. Please contact them for any warranty.