Celestron Ultima 8 - Telescope Basics and Optics; The Schmidt-Cassegrain System; Image Orientation and First Look; Magnification and Field of View Calculations

5
CHAPTER 9 - PHOTOGRAPHY..................................................................................................................................77
C
ELESTIAL
P
HOTOGRAPHY
...................................................................................................................................................77
S
HORT
E
XPOSURE
P
RIME
F
OCUS
P
HOTOGRAPHY
..................................................................................................................77
P
IGGYBACK
P
HOTOGRAPHY
..................................................................................................................................................79
E
YEPIECE
P
ROJECTION
..........................................................................................................................................................80
Effective Focal Length .....................................................................................................................................................81
Effective Magnification....................................................................................................................................................81
Effective f# or f-ratio........................................................................................................................................................82
L
ONG
E
XPOSURE
P
RIME
F
OCUS
P
HOTOGRAPHY
...................................................................................................................82
CCD IMAGING...................................................................................................................................................................84
Fastar Lens Assembly Option -- Using your Ultima 2000 telescope at f/1.95 with optional PixCel CCD Camera........84
Description of F-numbers................................................................................................................................................85
F
ASTAR
C
ONFIGURATIONS
....................................................................................................................................................86
Imaging at f/1.95..............................................................................................................................................................86
Imaging at f/6.3 (Medium size to small galaxies) ............................................................................................................86
Imaging at f/10 (Lunar or small planetary nebulae)........................................................................................................87
Imaging at f/20 (Planetary or lunar) ...............................................................................................................................87
CHAPTER 10 - TELESCOPE MAINTENANCE.........................................................................................................90
C
ARE AND
C
LEANING OF THE
O
PTICS
....................................................................................................................................90
C
OLLIMATION
.......................................................................................................................................................................90
OPTIONAL ACCESSORIES ...........................................................................................................................................92
APPENDIX A - DATA BASE STAR INFORMATION...............................................................................................96
A
LIGNMENT
S
TAR
L
IST
.........................................................................................................................................................96
C
ONSTELLATION
A
BBREVIATIONS
........................................................................................................................................97
L
IST OF
N
AMED
O
BJECT
C
ATALOG
.......................................................................................................................................98
APPENDIX B - ULTIMA 2000 COMMUNICATION PROTOCOL .........................................................................99
APPENDIX C - TECHNICAL SPECIFICATIONS...................................................................................................102
APPENDIX D - CCD AUTOGUIDE PIN OUT ..........................................................................................................105
APPENDIX E - OPERATION TIPS............................................................................................................................106
Setting the backlash compensations for an auto guider.................................................................................................106
Viewing near the zenith in Alt-Az...................................................................................................................................106
The effects of a star diagonal on pointing accuracy......................................................................................................106
Viewing objects below the horizon.................................................................................................................................107
Using Cord Wrap...........................................................................................................................................................107
Slewing Autostop............................................................................................................................................................107
GLOSSARY......................................................................................................................................................................108
THE SKY MAPS..............................................................................................................................................................112