3
Get Alt-Az.......................................................................................................................................................................................................29
Goto Alt-Az.....................................................................................................................................................................................................29
Hibernate.........................................................................................................................................................................................................29
Turn On/Off GPS ............................................................................................................................................................................................ 29
TELESCOPE BASICS ................................................................................................................................................................................................31
Image Orientation......................................................................................................................................................................................................31
Focusing.....................................................................................................................................................................................................................32
Aligning the Finderscope ..........................................................................................................................................................................................32
Calculating Magnification.........................................................................................................................................................................................32
Determining Field of View........................................................................................................................................................................................33
General Observing Hints...........................................................................................................................................................................................33
ASTRONOMY BASICS.............................................................................................................................................................................................. 34
The Celestial Coordinate System ..............................................................................................................................................................................34
Motion of the Stars ....................................................................................................................................................................................................35
Finding the North Celestial Pole...............................................................................................................................................................................37
Declination Drift Method of Polar Alignment..........................................................................................................................................................38
CELESTIAL OBSERVING........................................................................................................................................................................................ 39
Observing the Moon..................................................................................................................................................................................................39
Lunar Observing Hints ..............................................................................................................................................................................................39
Observing the Planets................................................................................................................................................................................................39
Observing the Sun .....................................................................................................................................................................................................39
Solar Observing Hints ...............................................................................................................................................................................................40
Observing Deep Sky Objects ....................................................................................................................................................................................40
Seeing Conditions......................................................................................................................................................................................................40
Transparency .............................................................................................................................................................................................................40
Sky Illumination........................................................................................................................................................................................................40
Seeing ........................................................................................................................................................................................................................40
ASTROPHOTOGRAPHY .......................................................................................................................................................................................... 42
Short Exposure Prime Focus Photography ...............................................................................................................................................................42
Eyepiece Projection...................................................................................................................................................................................................43
Long Exposure Prime Focus Photography................................................................................................................................................................44
Terrestrial Photography.............................................................................................................................................................................................46
Metering.....................................................................................................................................................................................................................46
Reducing Vibration ...................................................................................................................................................................................................46
CCD Imaging.............................................................................................................................................................................................................46
Auto Guiding ...................................................................................................................
..........................................................................................47
TELESCOPE MAINTENANCE ................................................................................................................................................................................ 48
Care and Cleaning of the Optics ...............................................................................................................................................................................48
Collimation................................................................................................................................................................................................................48
OPTIONAL ACCESSORIES.................................................................................................................................................................................... 50
APPENDIX A – TECHNICAL SPECIFICATIONS ............................................................................................................................................. 53
APPENDIX B – GLOSSARY OF TERMS.............................................................................................................................................................. 54
APPENDIX C – LONGITUDES AND LATITUDES .............................................................................................................................................. 57
APPENDIX D – RS-232 CONNECTION.................................................................................................................................................................. 62
APPENDIX E – TIME ZONE MAP .......................................................................................................................................................................... 64
SKY MAPS ................................................................................................................................................................................................................... 66
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