Celestron OMNI XLT 102 manual Table of Contents

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Table of Contents

INTRODUCTION	4
Warning	4
ASSEMBLY	8
Setting up the Tripod	8
Attaching the Equatorial Mount	9
Attaching the Center Leg Brace	10
Installing the Counterweight Bar	10
Installing the Counterweights	11
Attaching the Slow Motion Control Knobs (Cables)	11
Attaching the Telescope Tube to the Mount	12
Installing the Finderscope	13
Installing the Visual Back	13
Installing the Star Diagonal	14
Installing the Eyepieces	14
Moving the Telescope Manually	15
Balancing the Mount in R.A	15
Balancing the Mount in DEC	16
Adjusting the Mount	16
Adjusting the Mount in Altitude	17
Adjusting the Mount in Azimuth	17
TELESCOPE BASICS	18
Image Orientation	20
Focusing	20
Aligning the Finderscope	21
Calculating Magnification	21
Determining Field of View	22
General Observing Hints	22
ASTRONOMY BASICS	23
The Celestial Coordinate System	23
Motion of the Stars	24
Latitude Scale	25
Pointing at Polaris	25
Finding the North Celestial Pole	26
Polar Alignment in the Southern Hemisphere	27
Pointing at Sigma Octantis	28
Finding the South Celestial Pole (SCP)	28
Declination Drift Method of Polar Alignment	29
Aligning the R.A. Setting Circle	30
Using the R.A. Vernier Scale	31
CELESTIAL OBSERVING	32
Observing the Moon	32
Lunar Observing Hints	32
Observing the Planets	32
Observing the Sun	33
Solar Observing Hints	33
Observing Deep Sky Objects	33
Seeing Conditions	33
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Contents Omni XLT Series Telescopes Table of Contents Astrophotography Page Omni XLT 102 Refractor Omni XLT 150 Newtonian Omni XLT 127 Schmidt-Cassegrain Setting up the Tripod Attaching the Equatorial Mount Installing the Counterweight Bar Attaching the Center Leg BraceInstalling the Counterweights Attaching the Slow Motion Control Knobs CablesAttaching the Telescope Tube to the Mount Installing the Finderscope Installing the Visual BackInstalling the Star Diagonal Installing the EyepiecesMoving the Telescope Manually Balancing the Mount in R.AAdjusting the Mount Balancing the Mount in DECAdjusting the Mount in Altitude Adjusting the Mount in AzimuthPage Page Focusing Image OrientationAligning the Finderscope Calculating MagnificationDetermining Field of View General Observing HintsCelestial Coordinate System Motion of the Stars Latitude Scale Pointing at PolarisFinding the North Celestial Pole Polar Alignment in the Southern Hemisphere Polar Alignment with the Latitude ScalePointing at Sigma Octantis Finding the South Celestial Pole SCPDeclination Drift Method of Polar Alignment Aligning the R.A. Setting Circle Using the R.A. Vernier Scale 11 Vernier ScaleObserving the Planets Observing the MoonLunar Observing Hints Planetary Observing HintsObserving Deep Sky Objects Observing the SunSolar Observing Hints Seeing ConditionsUsing the Lens Cap Aperture Stop with Refractor Telescopes SeeingPiggyback Photography Using Digital Cameras Eyepiece Projection for a Schmidt-Cassegrain FullLong Exposure Prime Focus Photography Planetary and Lunar Photography with Special Imagers Metering CCD Imaging for Deep Sky ObjectsTerrestrial Photography Reducing VibrationCare and Cleaning of the Optics Collimation of RefractorsCollimation of a Schmidt-Cassegrain Two 2 turnsCollimated telescope Should appear Symmetrical with Collimation of a Newtonian Aligning the Secondary MirrorBoth mirrors aligned with your eye looking into the focuser Night Time Star Collimating As a Series 1 # Page Page Appendix a Technical Specifications Appendix B Glossary of Terms Page Page Page Page Page Page Page Page Celestron Two Year Warranty