Orion ATLAS EQ-G User Manual

INSTRUCTION MANUAL
IN 279 Rev. C 01/09
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Orion
®
Atlas
™
EQ-G
Equatorial Mount
#9996

Orion ATLAS EQ-G Specifications

General

Brand	Orion
Model	ATLAS EQ-G
Category	Telescope
Language	English

Summary

1. Unpacking

2. Parts List

3. Assembly

4. Attaching a Telescope

5. Balancing a Telescope

6. Setting Up and Using the Equatorial Mount

Polar Alignment

Procedure for aligning the mount's Right Ascension axis with the Earth's rotational axis for accurate tracking.

7. The Atlas EQ-G Dual-Axis Controller

Attaching the Dual-Axis Controller

Instructions for connecting the dual-axis hand controller to the mount using the serial connector.

Powering the Atlas EQ-G Mount

Details on the required 12V DC power supply and how to connect it to the mount.

Functions of the Dual-Axis Hand Controller

Overview of the speed, directional, and set buttons for controlling mount movements and tracking.

8. The Atlas EQ-G GoTo Hand Controller

Attaching the GoTo Hand Controller

Guide on connecting the GoTo hand controller to the mount and installing the bracket.

9. Technical Specifications

Appendix A: Enhancing the Pointing Accuracy

Cone Error Calibration

Procedure to calibrate for cone error, an inaccuracy affecting pointing accuracy on German equatorial mounts.

Appendix B: Periodic Error Correction (PEC)

PEC Training

Instructions for training the mount to correct for periodic errors, improving tracking accuracy for astrophotography.

Appendix C: RS-232 Connection

Sending a Tracking Rate

Details on sending commands to the hand controller via RS-232 to set tracking rates.