Celestron CGEM 800 Manuals

Manuals and User Guides for Celestron CGEM 800. We have 1 Celestron CGEM 800 manual available for free PDF download: Instruction Manual

Celestron CGEM 800 Instruction Manual

Celestron CGEM 800 Instruction Manual (71 pages)

CGEM Series

Brand: Celestron | Category: Telescope | Size: 4 MB

Table of Contents

Table of Contents
2
Introduction

4
- Warning
  4
- Control Panel
  5
Assembly

6
Hand Control

16
- Hand Control Operation
  17
- Alignment Procedures
  17
- Startup Procedure
  18
- Two Star Align
  19
  - East/West Filtering
    19
- Tips for Using Solar System Align
  20
- Last Alignment
  21
- Re-Alignment
  21
- Object Catalog
  21
- Selecting an Object
  21
- Slewing to an Object
  22
- Finding Planets
  22
- Tour Mode
  22
- Constellation Tour
  22
- Direction Buttons
  23
- Rate Button
  23
- Setup Procedures
  23
  - Tracking Mode
    23
  - Tracking Rate
    24
  - Date/Time
    24
  - View Time-Site
    24
  - User Defined Objects
    24
  - Get RA/DEC
    25
  - Goto R.a/Dec
    25
  - Identify
    25
- Precise Goto
  25
- Scope Setup Features
  25
  - Setup Time-Site
    25
  - Anti-Backlash
    26
  - Filter Limits
    26
  - Direction Buttons
    26
  - Goto Approach
    26
  - Autoguide Rates
    27
  - OTA Orientation
    27
  - Meridian
    27
  - Mount Settings
    27
  - RA Limits
    28
- Utility Features
  28
  - Calibrate Mount
    28
  - Home Position
    29
  - Light Control
    29
  - Factory Settings
    29
  - Version
    29
  - Get Axis Position
    29
  - Goto Axis Position
    29
  - Hibernate
    29
  - Sun Menu
    29
  - Scrolling Menu
    30
  - Set Mount Position
    30
  - Turn On/Off GPS
    30
  - Turn On/Off RTC
    30
  - Periodic Error Correction
    30
Telescope Basics

32
- Image Orientation
  32
- Focusing
  33
- Calculating Magnification
  33
- Determining Field of View
  33
- General Observing Hints
  34
Astronomy Basics

35
- The Celestial Coordinate System
  35
- Motion of the Stars
  36
- Polar Aligning the Mount
  37
  - Polar Align
    37
- Finding the North Celestial Pole
  39
Celestial Observing

40
- Observing the Moon
  40
- Lunar Observing Hints
  40
- Observing the Planets
  40
- Observing the Sun
  40
- Solar Observing Hints
  41
- Observing Deep Sky Objects
  41
- Seeing Conditions
  41
- Transparency
  41
- Sky Illumination
  41
- Seeing
  41
Astrophotography

43
- Short Exposure Prime Focus Photography
  43
- Eyepiece Projection
  44
- Long Exposure Prime Focus Photography
  46
- Periodic Error Correction (PEC)
  47
- Using Periodic Error Correction
  47
- Terrestrial Photography
  48
- Metering
  48
- Reducing Vibration
  48
- CCD Imaging
  49
- Auto Guiding
  49
Telescope Maintenance

50
- Care and Cleaning of the Optics
  50
- Collimation
  50
- Optional Accessories
  53
Appendix A - Technical Specifications

56
Appendix B - Glossary of Terms

57
Appendix C - Rs-232 Connection

60
- Communication Protocol
  60
Appendix D - Maps of Time Zones

62
Appendix D - Time Zone Map

62
Sky Maps

64
- Celestron Two Year Warranty
  70

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