3
TELESCOPE BASICS..........................................................................................................................................................................................29
Image Orientation ...............................................................................................................................................................................................29
Focusing..............................................................................................................................................................................................................30
Aligning the Finderscope....................................................................................................................................................................................30
Calculating Magnification...................................................................................................................................................................................30
Determining Field of View .................................................................................................................................................................................31
General Observing Hints.....................................................................................................................................................................................31
ASTRONOMY BASICS........................................................................................................................................................................................32
The Celestial Coordinate System........................................................................................................................................................................32
Motion of the Stars..............................................................................................................................................................................................33
Finding the North Celestial Pole.........................................................................................................................................................................35
Declination Drift Method of Polar Alignment.....................................................................................................................................................36
CELESTIAL OBSERVING..................................................................................................................................................................................37
Observing the Moon............................................................................................................................................................................................37
Lunar Observing Hints........................................................................................................................................................................................37
Observing the Planets..........................................................................................................................................................................................37
Observing the Sun...............................................................................................................................................................................................37
Solar Observing Hints.........................................................................................................................................................................................38
Observing Deep Sky Objects ..............................................................................................................................................................................38
Seeing Conditions...............................................................................................................................................................................................38
Transparency.......................................................................................................................................................................................................38
Sky Illumination..................................................................................................................................................................................................38
Seeing .................................................................................................................................................................................................................38
ASTROPHOTOGRAPHY....................................................................................................................................................................................40
Piggyback ...........................................................................................................................................................................................................40
Short Exposure Prime Focus Photography..........................................................................................................................................................41
Terrestrial Photography.......................................................................................................................................................................................42
Metering..............................................................................................................................................................................................................42
Reducing Vibration.............................................................................................................................................................................................42
Auto Guiding ......................................................................................................................................................................................................43
TELESCOPE MAINTENANCE..........................................................................................................................................................................44
Care and Cleaning of the Optics..........................................................................................................................................................................44
Collimation.........................................................................................................................................................................................................44
OPTIONAL ACCESSORIES..............................................................................................................................................................................48
APPENDIX A – TECHNICAL SPECIFICATIONS.........................................................................................................................................51
APPENDIX B – GLOSSARY OF TERMS.........................................................................................................................................................52
APPENDIX C – LONGITUDES AND LATITUDES..........................................................................................................................................55
APPENDIX D – RS-232 CONNECTION.............................................................................................................................................................60
APPENDIX E – TIME ZONE MAP.....................................................................................................................................................................62
SKY MAPS.............................................................................................................................................................................................................64