Celestron 21056-K User Manual

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INSTRUCTION MANUAL
Model # 21056-K
ENGLISH

Celestron 21056-K Specifications

General

Brand	Celestron
Model	21056-K
Category	Telescope
Language	English

Summary

Introduction

Assembly

Setting up the Tripod

Steps to assemble and extend the tripod for stability.

Attaching the Telescope Tube to the Mount

Procedure to connect the optical tube to the altazimuth mount.

Moving the Telescope Manually

How to adjust telescope position using locking knobs and slow motion rods.

Installing the Eyepiece

Guide to inserting eyepieces into the focuser for magnification.

Installing & Using the Barlow Lens

Instructions for using the Barlow lens to increase magnification.

Installing the StarPointer Finderscope

Steps to attach and prepare the finderscope for aiming.

Telescope Basics

Image Orientation

Explains the image orientation produced by Newtonian reflectors.

Focusing

How to adjust the focuser knob for a sharp image.

Astronomy Basics

The Celestial Coordinate System

Explains celestial coordinates (R.A. and Dec.) for locating objects.

Motion of the Stars

Describes how stars appear to move due to Earth's rotation.

Celestial Observing

Provides visual observing hints for celestial objects.

Telescope Maintenance

Care and Cleaning of the Optics

Guidance on safely cleaning telescope optics like mirrors and lenses.

Collimation of your Newtonian

Explains how to align telescope mirrors for optimal image quality.

Optional Accessories

Specifications