Celestron CR-150 HD - Manual (Page 2)

ii • Table of Contents
T T T T T A B L E O F C O N T E N T S A B L E O F C O N T E N T S A B L E O F C O N T E N T S A B L E O F C O N T E N T S A B L E O F C O N T E N T S
▲ ▲ ▲ ▲ ▲ INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION INTRODUCTION ............................................................................................................................. ............................................................................................................................. ............................................................................................................................. ............................................................................................................................. ............................................................................................................................. 44444
How to Use this Manual .................................................................................................................. 5
A Word of Caution .......................................................................................................................... 5
TheRefractor OpticalSystem.......................................................................................................6
▲ ▲ ▲ ▲ ▲ 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 ................................................................................................. ................................................................................................. ................................................................................................. ................................................................................................. ................................................................................................. 77777
The CR-150 HD The CR-150 HD The CR-150 HD The CR-150 HD The CR-150 HD .......................................................................................................................... .......................................................................................................................... .......................................................................................................................... .......................................................................................................................... .......................................................................................................................... 88888
Assembling the CG-5 Equatorial Mount............................................................. 9 Assembling the CG-5 Equatorial Mount............................................................. 9 Assembling the CG-5 Equatorial Mount............................................................. 9 Assembling 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
▲ ▲ ▲ ▲ ▲ TELESCOPE BASICS TELESCOPE BASICS TELESCOPE BASICS TELESCOPE BASICS TELESCOPE BASICS ..................................................................................................................... ..................................................................................................................... ..................................................................................................................... ..................................................................................................................... ..................................................................................................................... 2 0 2 0 2 0 2 0 2 0
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
▲ ▲ ▲ ▲ ▲ ASTRONOMY BASICS ASTRONOMY BASICS ASTRONOMY BASICS ASTRONOMY BASICS ASTRONOMY BASICS ................................................................................................................... ................................................................................................................... ................................................................................................................... ................................................................................................................... ................................................................................................................... 2 8 2 8 2 8 2 8 2 8
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