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Celestron OMNI XLT 102 manual

Models: OMNI XLT 102

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Celestron OMNI XLT 102 manual

Contents

Omni XLT Series Telescopes INSTRUCTION MANUALOmni XLT Omni XLT 102EDTable of Contents Transparency proper solar filter. Permanent and irreversible eye damage may result Accessory Tray/ Leg Brace CounterweightsCounterweight Bar Latitude Adjustment ScrewFigure 1-2 Omni XLT 150 Newtonian Finderscope BracketFocuser Accessory Tray/ Leg BraceDeclination Setting Circle Figure 1-3 Omni XLT 127 Schmidt-CassegrainLatitude Scale Schmidt Corrector LensSetting 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 Tube Rings Mounting Bracket Mounting Platform Telescope MountingScrew Installing the Finderscope Installing the Visual Backmake contact with the finderscope body Installing the Star Diagonal Installing the EyepiecesMoving the Telescope Manually Balancing the Mount in R.ADEC Clamp R.A. Clamp Adjusting the Mount Balancing the Mount in DECGO OF THE TELESCOPE TUBE COMPLETELY Adjusting the Mount in Altitude Adjusting the Mount in AzimuthA cutaway view of the light path of the Refractor optical design A cutaway view of the light path of the Newtonian optical design Focusing Image OrientationActual image orientation as seen with the unaided eye Reversed from left to right, asAligning the Finderscope Calculating MagnificationDetermining Field of View General Observing HintsThe Celestial Coordinate System The celestial sphere seen from the outside showing R.A. and DECMotion of the Stars Starts seen near the north celestial poleStarts seen near the celestial equator Latitude Scale Pointing at PolarisFinding the North Celestial Pole Polar Alignment in the Southern Hemisphere Polar Alignment with the Latitude ScaleBig Dipper Litle DipperPointing 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 Observing the Moon Lunar Observing HintsObserving the Planets Planetary Observing HintsObserving the Sun Solar Observing HintsObserving Deep Sky Objects Seeing ConditionsUsing the Lens Cap Aperture Stop with Refractor Telescopes SeeingPiggyback Photography Using Digital Cameras Short Exposure Prime Focus Photography for Refractors & NewtoniansShort Exposure Prime Focus Photography for Schmidt-Cassegrains See note about digital cameras belowEyepiece Projection for a Schmidt-Cassegrain Long Exposure Prime Focus Photography Planetary and Lunar Photography with Special Imagers CCD Imaging for Deep Sky Objects Terrestrial PhotographyMetering Reducing VibrationCare and Cleaning of the Optics Collimation of Refractorsrub in circles Collimation of a Schmidt-Cassegrain two 2 turnsTo make collimation a simple procedure, follow these easy steps Collimation of a Newtonian Aligning the Secondary MirrorAligning the Primary Mirror Primary mirror needs Secondary mirror needsadjustment adjustment Secondary MirrorBoth mirrors aligned with the collimating cap in the focuser PrimaryProcedure -- Please read this section completely before beginning Night Time Star Collimatingappear patterndiffraction Series 1 - # Series 2 - #Series 3 - # Series 4 - #Page Page Appendix A Technical Specifications Appendix B - Glossary of Terms Page Page Page Page Page Page Page Page Celestron Two Year Warranty Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. 310 Copyright 2008 Celestron All rights reservedProducts or instructions may change without notice or obligation Item # 21088-INST Rev Printed in China $10.00