INSTRUCTION MANUAL
C8-N / C8-NGT
C10-N / C10-N
Advanced Series Advanced Series GT
Adjusting the Mount in Altitude
TELESCOPE BASICS
Some of the many standard features of the Advanced GT include
Fig 1-1 - The Advanced Series Newtonian
C8-N Shown
Fig 1-2 - The Advanced Series GT Newtonian
C8-NGT Shown
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Setting up the Tripod
Attaching the Equatorial Mount
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Installing the Counterweight Bar
Attaching the Center Leg Brace
Attaching the Slow Motion Knobs For Non-GT Models Only
Installing the Counterweight
Attaching the Hand Control Holder Advanced GT Models Only
Attaching the Telescope Tube to the Mount
telescope
Installing the Finderscope
Installing the Eyepieces
OF THE TELESCOPE TUBE COMPLETELY
Balancing the Tube in R.A
Balancing the Telescope in DEC
Adjusting the Mount
Adjusting the Mount in Altitude
Attaching the Declination Cable For GT Models Only
Adjusting the Mount in Azimuth
Powering the Telescope
The Advanced GT Hand Control
Named Objects
Hand Control Operation
Named Stars
Double Stars
Alignment Procedures
Startup Procedure
Auto Align
Auto Three-Star Align
Re-Alignment
Quick-Align
Last Alignment
Slewing to an Object
Object Catalog
Selecting an Object
Finding Planets
Direction Buttons
Tour Mode
Constellation Tour
Rate Button
6 = 7 = .5º / sec 8 = 2º / sec 9 = 3º / sec
Setup Procedures
1 = 2 = 1x sidereal 3 = 4 = 5 =
Nine available slew speeds
Identify
Scope Setup Features
Precise GoTo
Observing Tip Helpful Hint
Utility Features
Helpful Hint
ALIGNMENT
ADVANCED GT
MENU
LIST
Image Orientation
A cutaway view of the light path of the Newtonian optical design
Calculating Magnification
Focusing
Aligning the Finderscope
Actual image orientation as seen with the unaided eye
Determining Field of View
General Observing Hints
The Celestial Coordinate System
The celestial sphere seen from the outside showing R.A. and DEC
Motion of the Stars
Latitude Scales
Pointing at Polaris
Finding the North Celestial Pole
the south celestial pole
Declination Drift Method of Polar Alignment
Observing the Planets
Observing the Moon
Lunar Observing Hints
Observing the Sun
Seeing Conditions
Solar Observing Hints
Observing Deep Sky Objects
Transparency
Seeing conditions directly affect image quality. These drawings represent a point source i.e., star under bad seeing conditions left to excellent conditions right. Most often, seeing conditions produce images that lie some where between these two extremes
Piggyback
Short Exposure Prime Focus Photography
Reducing Vibration
Terrestrial Photography
Metering
Lunar Phase
Auto Guiding
Aligning the Secondary Mirror
Care and Cleaning of the Optics
Collimation
Aligning the Primary Mirror
Night Time Star Collimating
Procedure Please read this section completely before beginning
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Orange, Light Blue, ND13%T, Polarizing #s 21, 80A, #15, Polarizing
40mm
Series 1 - #94119-10
Series 2 - #94119-20
Series 4 - #94119-40
Series 3 - #94119-30
Light Red, Blue, Green, ND50% T #s 23A, 38A, 58, 96ND-50
Yellow, Deep Yellow, Violet, Pale Blue #s 8, 47, 82A, 96ND-13
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Appendix A - Technical Specifications
Advanced Series
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Appendix B - Glossary of Terms
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APPENDIX C LONGITUDES AND LATITUDES
CONNECTICUT
LONGITUDE
LONGITUDE
LONGITUDE
CANADA
INTERNATIONAL
Communication Protocol
Appendix D - RS-232 Connection
PC Command ASCII
Description
Send Any Track Rate Through RS232 To The Hand Control
Additional RS232 Commands
Reset The Position Of Azm Or Alt
APPENDIX E - MAPS OF TIME ZONES
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CELESTRON TWO YEAR WARRANTY
Copyright 2003 Celestron All rights reserved
Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. 310
Fax. 310
Products or instructions may change without notice or obligation