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Celestron OMNI XLT 102 1 Omni XLT 102 Refractor, Optical Tube, Steel Tripod, Tube Rings, Eyepiece

Models: OMNI XLT 102

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$Figure 1-1 Omni XLT 102 Refractor$

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Figure 1-1 Omni XLT 102 Refractor

(Omni XLT 102ED, Omni XLT 120 and Omni XLT 150R refractors are similar)

1.	Optical Tube	7.	1.75" Steel Tripod
2.	Tube Rings	8.	Accessory Tray/ Leg Brace
3.	Finderscope	9.	Counterweights
4.	Eyepiece	10.	Counterweight Bar
5.	Equatorial Mount	11.	Dovetail Slide Bar
6.	Latitude Adjustment Screw	12.	Objective Lens Shade

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$Celestron OMNI XLT 102 1 Omni XLT 102 Refractor, Omni XLT 102ED, Omni XLT 120 and Omni XLT 150R refractors are similar$

Contents

INSTRUCTION MANUAL Omni XLT Series TelescopesOmni XLT Omni XLT 102EDTable of Contents Transparency proper solar filter. Permanent and irreversible eye damage may result Counterweights Accessory Tray/ Leg BraceCounterweight Bar Latitude Adjustment ScrewFinderscope Bracket Figure 1-2 Omni XLT 150 NewtonianFocuser Accessory Tray/ Leg BraceFigure 1-3 Omni XLT 127 Schmidt-Cassegrain Declination Setting CircleLatitude Scale Schmidt Corrector LensSetting up the Tripod Attaching the Equatorial Mount Attaching the Center Leg Brace Installing the Counterweight BarAttaching the Slow Motion Control Knobs Cables Installing the CounterweightsScrew Attaching the Telescope Tube to the MountTube Rings Mounting Bracket Mounting Platform Telescope Mounting make contact with the finderscope body Installing the FinderscopeInstalling the Visual Back Installing the Eyepieces Installing the Star DiagonalDEC Clamp R.A. Clamp Moving the Telescope ManuallyBalancing the Mount in R.A GO OF THE TELESCOPE TUBE COMPLETELY Adjusting the MountBalancing the Mount in DEC Adjusting the Mount in Azimuth Adjusting the Mount in AltitudeA cutaway view of the light path of the Refractor optical design A cutaway view of the light path of the Newtonian optical design Image Orientation FocusingActual image orientation as seen with the unaided eye Reversed from left to right, asCalculating Magnification Aligning the FinderscopeGeneral Observing Hints Determining Field of ViewThe celestial sphere seen from the outside showing R.A. and DEC The Celestial Coordinate SystemStarts seen near the celestial equator Motion of the StarsStarts seen near the north celestial pole Pointing at Polaris Latitude ScaleFinding the North Celestial Pole Polar Alignment with the Latitude Scale Polar Alignment in the Southern HemisphereBig Dipper Litle DipperFinding the South Celestial Pole SCP Pointing at Sigma OctantisDeclination Drift Method of Polar Alignment Aligning the R.A. Setting Circle Using the R.A. Vernier Scale Lunar Observing Hints Observing the MoonObserving the Planets Planetary Observing HintsSolar Observing Hints Observing the SunObserving Deep Sky Objects Seeing ConditionsSeeing Using the Lens Cap Aperture Stop with Refractor TelescopesPiggyback Photography Short Exposure Prime Focus Photography for Refractors & Newtonians Using Digital CamerasShort 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 Terrestrial Photography CCD Imaging for Deep Sky ObjectsMetering Reducing Vibrationrub in circles Care and Cleaning of the OpticsCollimation of Refractors two 2 turns Collimation of a Schmidt-CassegrainTo make collimation a simple procedure, follow these easy steps Aligning the Primary Mirror Collimation of a NewtonianAligning the Secondary Mirror Secondary Mirror Primary mirror needs Secondary mirror needsadjustment adjustmentBoth mirrors aligned with the collimating cap in the focuser PrimaryNight Time Star Collimating Procedure -- Please read this section completely before beginningdiffraction appearpattern Series 2 - # Series 1 - #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 Copyright 2008 Celestron All rights reserved Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. 310Products or instructions may change without notice or obligation Item # 21088-INST Rev Printed in China $10.00