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ii • Table of Contents
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INTRODUCTION INTRODUCTION
INTRODUCTION INTRODUCTION
INTRODUCTION
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44
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How to Use this Manual .................................................................................................................. 5
A Word of Caution .......................................................................................................................... 5
TheRefractor OpticalSystem.......................................................................................................6
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ASSEMBLING YOUR CR-150 HD ASSEMBLING YOUR CR-150 HD
ASSEMBLING YOUR CR-150 HD ASSEMBLING YOUR CR-150 HD
ASSEMBLING YOUR CR-150 HD
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The CR-150 HDThe CR-150 HD
The CR-150 HDThe CR-150 HD
The CR-150 HD
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Assembling the CG-5 Equatorial Mount............................................................. 9Assembling the CG-5 Equatorial Mount............................................................. 9
Assembling the CG-5 Equatorial Mount............................................................. 9Assembling the CG-5 Equatorial Mount............................................................. 9
Assembling the CG-5 Equatorial Mount............................................................. 9
Setting Up the Tripod ......................................................................................................... 9
Adjusting the Tripod Height ................................................................................................ 9
Attaching the Accessory Tray ............................................................................................10
Attaching the Equatorial Mount ......................................................................................... 11
Attaching the R.A. Slow Motion Knob ..................................................................12
Attaching the Declination Slow Motion Knob ........................................................13
Attaching the Counterweight Bar and Counterweights .............................................14
Attaching the Telescope to the Mount .................................................................................15
Removing the Lens Cap ..................................................................................................... 16
Balancing the Telescope in R.A. ......................................................................................... 17
Balancing the Telescope in DEC ........................................................................................17
Adjusting the Mount in Altitude ......................................................................................... 18
Adjusting the Mount in Azimuth ........................................................................................18
Disassembling and Transporting Your CR-150 HD .............................................................19
Storing Your CR-150 HD ..................................................................................................19
Technical Specification................................................................................................19
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TELESCOPE BASICS TELESCOPE BASICS
TELESCOPE BASICS TELESCOPE BASICS
TELESCOPE BASICS
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2020
2020
20
Attaching the Accessories ...............................................................................................................20
The Star Diagonal .............................................................................................................20
The Eyepiece ....................................................................................................................20
Focusing ........................................................................................................................................22
Attaching the Finder................................................................................................................22
Aligning the Finder ........................................................................................................................23
Image Orientation ..........................................................................................................................24
Your First Look .............................................................................................................................24
Daytime Observing ........................................................................................................... 24
Nighttime Observing .........................................................................................................25
Calculating Magnification ...............................................................................................................26
Determining Field of View .............................................................................................................26
General Photography Hints .............................................................................................................27
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ASTRONOMY BASICS ASTRONOMY BASICS
ASTRONOMY BASICS ASTRONOMY BASICS
ASTRONOMY BASICS
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The Celestial Coordinate System .....................................................................................................28
Motion of the Stars .........................................................................................................................29
Polar Alignment .............................................................................................................................30
Finding the Pole .............................................................................................................................31
Latitude Scales ..................................................................................................................32
Pointing at Polaris .............................................................................................................33
Declination Drift ..............................................................................................................34
Polar Alignment Finders ....................................................................................................35
Aligning the R.A. Setting Circle .........................................................................................35