Celestron XLT series User Manual

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Celestron XLT series Specifications

General

Brand	Celestron
Model	XLT series
Category	Telescope
Language	English

Summary

Introduction

Warning

Safety warnings for telescope use, including eye protection and proper handling.

Assembly

Setting up the Tripod

Attaching the Equatorial Mount

Attaching the Telescope Tube to the Mount

Balancing the Mount in R.A.

Procedure to balance the telescope on the Right Ascension axis for smooth operation.

Balancing the Mount in DEC

Steps to balance the telescope on the Declination axis to prevent sudden movements.

Adjusting the Mount in Altitude

Adjusting the Mount in Azimuth

Telescope Basics

Focusing

Instructions on how to focus the telescope for clear viewing of celestial objects.

Aligning the Finderscope

Astronomy Basics

Pointing at Polaris

Declination Drift Method of Polar Alignment

Advanced method for precise polar alignment by monitoring star drift.

Aligning the R.A. Setting Circle

Celestial Observing

Observing the Sun

Important safety precautions and methods for observing the Sun.

Astrophotography

Piggyback Photography

Short Exposure Prime Focus Photography for Refractors & Newtonians

How to attach an SLR camera for prime focus astrophotography.

Eyepiece Projection for a Schmidt-Cassegrain

Long Exposure Prime Focus Photography

Advanced technique for capturing faint deep-sky objects with long exposures.

Telescope Maintenance

Care and Cleaning of the Optics

Proper methods for cleaning telescope lenses and mirrors to avoid damage.

Collimation of Refractors

How to collimate refractor telescopes by adjusting the objective lens housing.

Collimation of a Schmidt-Cassegrain

Procedure for collimating Schmidt-Cassegrain telescopes by adjusting the secondary mirror.

Night Time Star Collimating

Celestron Two Year Warranty

Warranty Terms

Details of Celestron's two-year limited warranty for telescopes.