Celestron PowerSeeker 127 User Manual

P
P
o
o
w
w
e
e
r
r
S
S
e
e
e
e
k
k
e
e
r
r
1
1
2
2
7
7
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
#21049

Celestron PowerSeeker 127 Specifications

General

Aperture	127mm (5")
Focal Length	1000 mm
Focal Ratio	f/7.87
Mount Type	Equatorial
Optical Design	Newtonian Reflector
Eyepiece 1	20 mm (50x)
Eyepiece 2	4 mm (250x)
Barlow Lens	3x
Finderscope	5x24
Tripod	Aluminum
Highest Useful Magnification	300x
Weight	22 lbs (10 kg)

Summary

INTRODUCTION

Key Telescope Terms

Defines essential terms like equatorial mount, focal length, primary mirror, and reflecting telescope.

Essential Safety Precautions

Crucial warnings about sun observation, image projection, unsupervised use, and finderscope safety.

PowerSeeker 127 Assembly

Setting Up the Tripod and Tray

Instructions for extending tripod legs and attaching the accessory tray.

Attaching the Equatorial Mount

Steps to mount the equatorial head onto the tripod and attach the counterweight bar.

Installing Telescope Components

Mounting the Optical Tube

Detailed steps for attaching the telescope optical tube to the equatorial mount.

Attaching the Accessories

Guidance on installing eyepieces, Barlow lens, and the finderscope.

Telescope Operation

Moving Your Telescope

Explains how to move the telescope in declination and right ascension using knobs and cables.

Telescope Balancing

Balancing in Right Ascension (R.A.)

Steps to balance the telescope's right ascension axis for smooth movement and tracking.

Balancing in Declination (DEC)

Steps to balance the telescope's declination axis to prevent sudden motions.

Telescope Fundamentals

Image Orientation and Focusing

Describes image orientation in Newtonian reflectors and the telescope focusing mechanism.

Celestial Navigation

Celestial Coordinate System Explained

Details the celestial coordinate system (R.A. and Declination) for locating objects.

Understanding Star Motion

Explains the apparent motion of stars due to Earth's rotation.

Alignment Procedures

Polar Alignment using Latitude Scales

Method for polar aligning the telescope using latitude scales in daylight.

Pointing at Polaris

Instructions for polar alignment using Polaris as a guide in the dark.

Advanced Usage

Using Setting Circles

How to use setting circles to locate celestial objects by coordinates.

Calculating Magnification

Formula and examples for calculating telescope magnification with different eyepieces.

Telescope Maintenance

Collimation Procedure

Steps to check and adjust telescope collimation if needed.

Specifications

Optional Accessories

Warranty Information

Celestron Two Year Limited Warranty

Details the warranty terms, coverage, and return procedures.