Manual Celestron PowerSeeker 127EQ - 21049 (page 2 of 151) (English, German, French, Italian, Spanish)

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Table of Contents

INTRODUCTION .......................................................................................................................... 3

ASSEMBLY ................................................................................................................................... 6

Setting up the Tripod............................................................................................................................................. 6

Attaching the Equatorial Mount .......................................................................................................................... 7

Installing the Counterweight Bar & Counterweight(s) ...................................................................................... 7

Attaching the Slow Motion Cables ....................................................................................................................... 8

Attaching the Telescope Tube to the Mount........................................................................................................ 8

Installing the Diagonal & Eyepiece (Refractor) .................................................................................................. 9

Installing the Eyepiece on the Newtonian............................................................................................................ 9

Installing the Finderscope................................................................................................................................... 10

Aligning the Finderscope..................................................................................................................................... 10

Installing and Using the Barlow Lens ................................................................................................................ 10

Moving the Telescope Manually......................................................................................................................... 11

Balancing the Mount in R.A. .............................................................................................................................. 11

Balancing the Mount in Dec................................................................................................................................ 11

Adjusting the Equatorial Mount ........................................................................................................................ 12

Adjusting the Mount in Altitude......................................................................................................................... 12

TELESCOPE BASICS ................................................................................................................. 13

Image Orientation................................................................................................................................................ 14

Focusing................................................................................................................................................................ 14

Calculating Magnification................................................................................................................................... 14

Determining Field of View .................................................................................................................................. 15

General Observing Hints..................................................................................................................................... 15

ASTRONOMY BASICS .............................................................................................................. 16

The Celestial Coordinate System........................................................................................................................ 16

Motion of the Stars .............................................................................................................................................. 16

Polar Alignment with the Latitude Scale........................................................................................................... 17

Pointing at Polaris................................................................................................................................................ 18

Finding the North Celestial Pole......................................................................................................................... 18

Polar Alignment in the Southern Hemisphere .................................................................................................. 19

Aligning the Setting Circles................................................................................................................................. 21

Motor Drive.......................................................................................................................................................... 22

CELESTIAL OBSERVING ......................................................................................................... 23

Observing the Moon ............................................................................................................................................ 23

Observing the Planets.......................................................................................................................................... 23

Observing the Sun................................................................................................................................................ 23

Observing Deep-Sky Objects .............................................................................................................................. 24

Seeing Conditions................................................................................................................................................. 24

ASTROPHOTOGRAPHY............................................................................................................ 25

Short Exposure Prime Focus Photography ....................................................................................................... 25

Piggyback Photography....................................................................................................................................... 25

Planetary & Lunar Photography with Special Imagers................................................................................... 25

CCD Imaging for Deep Sky Objects .................................................................................................................. 25

Terrestrial Photography...................................................................................................................................... 25

TELESCOPE MAINTENANCE.................................................................................................. 26

Care and Cleaning of the Optics......................................................................................................................... 26

Collimation of a Newtonian................................................................................................................................. 26

OPTIONAL ACCESSORIES ..................................................................................................... 29

POWERSEEKER SPECIFICATIONS......................................................................................... 30

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Celestron PowerSeeker 127EQ - 21049 Manual

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