Manuals / Celestron / Lawn and Garden / Telescope

Celestron OMNI XLT 102 manual Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. 310

Models: OMNI XLT 102

1 62

Download 62 pages 19.89 Kb

Page 62

Celestron

2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. (310) 328-9560

Fax. (310) 212-5835 Website www.celestron.com

Copyright 2008 Celestron

All rights reserved.

(Products or instructions may change without notice or obligation.)

Item # 21088-INST Rev. 02

Printed in China $10.00 08-08

Image 62

Celestron OMNI XLT 102 manual Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. 310

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 CablesScrew 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 Star Diagonal Installing the EyepiecesDEC 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 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 DECStarts seen near the celestial equator Motion of the StarsStarts seen near the north celestial pole 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 Vibrationrub in circles Care and Cleaning of the OpticsCollimation of Refractors Collimation of a Schmidt-Cassegrain two 2 turnsTo make collimation a simple procedure, follow these easy steps Aligning the Primary Mirror Collimation of a NewtonianAligning the Secondary 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 Collimatingdiffraction appearpattern 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