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Celestron 127 manual

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Table of contents for the manual

  • Page 1

    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[...]

  • Page 2

    INTRODUCTION Congratulations on your purchase and wel come to the Celestron world of am ateur astronom y. Some of the te rms and parts described in these instructions m ay be new to y ou, so a few comm only used term s you’ll want to be familiar with are defined below. Equatorial mount – a type of mounting th at allows the telescope to be alig [...]

  • Page 3

    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 m i l j g e k f p o n h d c a b 1 1 2 2 7 7 m m m m N N e e w w t t o o n n i i a a n n R R e e f f l l e e c c t t i i n n g g T T e e l l e e s s c c o o p p e e 3[...]

  • Page 4

    T T H H E E 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 R R e e f f l l e e c c t t o o r r The PowerSeeker is a Newtonian reflecting te lescope that comes on an equat orial mount. Thi s section instructs you on the proper assembly and use of y our PowerSeeker telescope, which is shi pped in one box, containing all t he parts you need t[...]

  • Page 5

    A A t t t t a a c c h h i i n n g g t t h h e e O O p p t t i i c c a a l l T T u u b b e e You are now ready to put the tele scope optical tube (c) onto the equatori al mount (f). 1. Slightly loosen the screws that hold the mounting rings on the telescope in place. 2. Slide the rings apart so that each is at the same distance as th e holes in the [...]

  • Page 6

    2. To move the tel escope in right ascension (east/west) t here are two options. For large and quick m ovements, loosen the right ascension knob when m oving the telescope and t hen tighten the knob when you are near the position you want. For very small m ovements and fi ne adjustments, t urn the right ascension cable. Unli ke the declination cabl[...]

  • Page 7

    focal lengths up to 1000mm and still enjoy a telescope that is relatively compact and portabl e. A Newtonian Reflector telescope offers such impressive light -gathering characteristics you can take a serious interest in deep space astronomy even on a modest budget. Newtonian Re flector telescopes do require m ore care and maintenance because the pr[...]

  • Page 8

    T T h h e e C C e e l l e e s s t t i i a a l l C C o o o o r r d d i i n n a a t t e e S S y y s s t t e e m m To help find objects in the sky , astronomers use a celestial coordinate system that is similar to our geographical coordinate syst em here on Earth. The celestial coordinate system has poles, lines of longitude and latitude, and an equat[...]

  • Page 9

    Latitude Scales The easiest way to polar align a telescope is with a latitude scale. Unlike other methods that require you to find the celesti al pole by identifying certain stars near it, this method works off of a known constant to determine how high the polar axis should be pointed (see figure 10). The constant, mentioned above, is a relationshi[...]

  • Page 10

    Fi g ure 10- Ali g nin g the E q uatorial mount to the p olar axis of the Earth. F F i i n n d d i i n n g g t t h h e e N N o o r r t t h h C C e e l l e e s s t t i i a a l l P P o o l l e e In each hemisphere, there is a point in the sky around which all the other stars appear to rotate. These points are called the celestial poles and are named [...]

  • Page 11

    U U s s i i n n g g t t h h e e S S e e t t t t i i n n g g C C i i r r c c l l e e s s Setting Circles are dials (or gauges) for right ascensi on a nd declination th at allow you to locate celestial o bjects easily from their coordinates as listed in a star chart or atlas. 1. The declination setting circle (see Figure 9) is scaled in degrees and t[...]

  • Page 12

    Eyepiece Magnification Mag. with 3x Barlow Lens 20mm 50x 150x 4mm 250x 750x T T E E L L E E S S C C O O P P E E M M A A I I N N T T E E N N A A N N C C E E With proper care, your telescope should rarel y need any mai n tenance work. To ma intain your telescope i n the best possible condition, observe the fol low suggestions: 1. When your telescope [...]

  • Page 13

    O O p p t t i i o o n n a a l l A A c c c c e e s s s s o o r r i i e e s s Celestron offers a full line of optional accessories for your telescope. Please refer to the Celestron Accessory Catalog (#93685) for a complete description, or logon to our web sit e at www.celestron.com . Eyepieces – An assortment of 1¼” eyepieces are availabl e to g[...]

  • Page 14

    CELESTRON TWO YEAR WARRANTY A. Celestron warrants this telescope to be free from defects in materials and workma nship for two years. Celestron will repa ir or replace such product or part thereof which, upon inspection by Celestr on, is found to be defective in m aterials or workm anship. As a condit ion to the obligation of Celestron to repa ir o[...]

  • Page 15

    Celestron 2835 Columbia St reet Torrance, CA 90503 Tel. (310) 328-9560 Fax. (310) 212-5835 Web site at http//www.celestron.com Copyright 2005 Ce lestron All rights reserved. (Products or instructions m ay change without notice or obl igation.) Printed in China #21049 01-05[...]