Celestron 102 User Manual

I
I
N
N
S
S
T
T
R
R
U
U
C
C
T
T
I
I
O
O
N
N
M
M
A
A
N
N
U
U
A
A
L
L
N
N
e
e
x
x
S
S
t
t
a
a
r
r
6
6
0
0
.
.
N
N
e
e
x
x
S
S
t
t
a
a
r
r
8
8
0
0
.
.
N
N
e
e
x
x
S
S
t
t
a
a
r
r
1
1
0
0
2
2
.
.
N
N
e
e
x
x
S
S
t
t
a
a
r
r
1
1
1
1
4
4
.
.
N
N
e
e
x
x
S
S
t
t
a
a
r
r
1
1
3
3
0
0

Celestron 102 Specifications

General

Brand	Celestron
Model	102
Category	Telescope
Language	English

Summary

Introduction

Safety Warning

Crucial safety precautions to prevent eye damage and equipment damage during use.

Assembly

Fork Arm to Tripod Attachment

Telescope to Fork Arm Attachment

Star Pointer Finderscope

Star Pointer Installation

Star Pointer Operation

How to properly align and use the Star Pointer finderscope for accurate aiming.

Hand Control Connection

Powering the NexStar

How to install batteries or connect an AC adapter to power the telescope.

NexStar Hand Control

Hand Control Components

Hand Control Operation

Basic procedures for operating the NexStar using the hand control buttons.

Alignment Procedure

Sky Align Method

Step-by-step guide for aligning the telescope using three bright celestial objects.

Location and Time Entry

Inputting local time, date, and geographical location for accurate telescope alignment.

Sky Align Usage Tips

Guidelines to ensure accurate and simple alignment using the Sky Align method.

Auto Two-Star Align Method

Procedure for automatically aligning the telescope using two bright stars.

Two-Star Align Method

Manually aligning the telescope by identifying and centering two bright stars.

One-Star Align Method

Quick alignment for planets and bright objects using a single star.

Solar System Align Method

Aligning using solar system objects like the Sun, Moon, and planets.

NexStar Re-Alignment

How to replace existing alignment stars to improve pointing accuracy.

Object Catalog

Selecting an Object

Methods for choosing celestial objects from the hand control database.

Slewing to an Object

How to move the telescope to point at a selected celestial object.

Finding Planets

Locating and observing planets in the solar system using the hand control.

Tour Mode

Constellation Tour

Set Up Procedures

Direction Buttons Operation

How to use the directional keys to control telescope movement at different speeds.

Rate Button Operation

Adjusting the telescope's motor slew speed using the RATE button.

Tracking Mode Setup

Configuring tracking modes (Alt-Az, EQ North, EQ South, Off) for celestial or terrestrial use.

Tracking Rate Settings

Setting the telescope's tracking rate (Sidereal, Solar, Lunar) for object tracking.

User Defined Objects

Goto R.A/ Dec

Identify Mode

Searching the database to identify unknown objects in the eyepiece.

Scope Setup Features

Anti-backlash Compensation

Adjusting anti-backlash settings to minimize gear play and improve pointing accuracy.

Slew Limits Configuration

Filter Limits Configuration

Utility Features

Telescope Basics

Telescope Focusing

How to adjust the focuser knob to achieve a sharp image of celestial or terrestrial objects.

Calculating Magnification

Formula and method to determine the telescope's magnification power.

Determining Field of View

Celestial Observing

Observing the Moon

Observing the Planets

Observing the Sun

Precautions and methods for safe solar observation.

Solar Observing Hints

Observing Deep Sky Objects

Seeing Conditions

Telescope Maintenance

Care and Cleaning of Optics

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

Collimation

How to check and adjust optical alignment for reflector models.

Optional Accessories

Technical Specifications

Optical Specifications

Celestron Two Year Warranty