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Celestron OMNI XLT 102 manual 2 Omni XLT 150 Newtonian, Finderscope Bracket, Focuser, Steel Tripod

Models: OMNI XLT 102

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Figure 1-2 Omni XLT 150 Newtonian

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Figure 1-2 Omni XLT 150 Newtonian

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

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Celestron OMNI XLT 102 2 Omni XLT 150 Newtonian, Finderscope Bracket, Focuser, Steel Tripod, Accessory Tray/ Leg Brace

Contents

Omni XLT Omni XLT Series TelescopesINSTRUCTION MANUAL Omni XLT 102EDTable of Contents Transparency proper solar filter. Permanent and irreversible eye damage may result Counterweight Bar Accessory Tray/ Leg BraceCounterweights Latitude Adjustment ScrewFocuser Figure 1-2 Omni XLT 150 NewtonianFinderscope Bracket Accessory Tray/ Leg BraceLatitude Scale Declination Setting CircleFigure 1-3 Omni XLT 127 Schmidt-Cassegrain 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 Actual image orientation as seen with the unaided eye FocusingImage Orientation 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 Big Dipper Polar Alignment in the Southern HemispherePolar Alignment with the Latitude Scale 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 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 Short Exposure Prime Focus Photography for Schmidt-Cassegrains Using Digital CamerasShort Exposure Prime Focus Photography for Refractors & Newtonians See note about digital cameras belowEyepiece Projection for a Schmidt-Cassegrain Long 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 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 Both mirrors aligned with the collimating cap in the focuser Primary mirror needs Secondary mirror needsadjustment adjustmentSecondary Mirror PrimaryProcedure -- Please read this section completely before beginning Night Time Star Collimatingappear patterndiffraction Series 3 - # Series 1 - #Series 2 - # 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 Products or instructions may change without notice or obligation Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. 310Copyright 2008 Celestron All rights reserved Item # 21088-INST Rev Printed in China $10.00