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PowerSeeker 127
PowerSeeker 127
INSTRUCTION MANUAL
INSTRUCTION MANUAL
#21049
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INTRODUCTION Congratulations on your purchase and welcome to the Celestron world of amateur astronomy. Some of the terms and parts described in these instructions may be new to you, so a few commonly used terms you’ll want to be familiar with are defined below. Equatorial mount – a type of mounting that allows the telescope to be aligned with the earth's axis in order to track the motion of the sky. Focal length - the distance from the optical center of the lens to the point where
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P Po ow we er rS Se ee ek ke er r 1 12 27 7 a b c p o n m l d e f k g j h i 127mm Newtonian Reflecting Telescope 127mm Newtonian Reflecting Telescope 3
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THE POWERSEEKER 127 Reflector THE POWERSEEKER 127 Reflector The PowerSeeker is a Newtonian reflecting telescope that comes on an equatorial mount. This section instructs you on the proper assembly and use of your PowerSeeker telescope, which is shipped in one box, containing all the parts you need to assemble it. Unpack and lay out all of the parts in a large, clear area where you’ll have room to work. Use the list below and the telescope diagram to confirm you have, and can identi
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A At tt ta ac ch hiin ng g t th he e O Op pt tiic ca all T Tu ub be e You are now ready to put the telescope optical tube (c) onto the equatorial 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 the holes in the mounting platform. 3. Place the telescope tube on the mount so that the treaded post at the bottom of the tube rings go through the holes on the mounting p
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2. To move the telescope in right ascension (east/west) there are two options. For large and quick movements, loosen the right ascension knob when moving the telescope and then tighten the knob when you are near the position you want. For very small movements and fine adjustments, turn the right ascension cable. Unlike the declination cable, the right ascension cable has 360˚ of continuous motion. Balancing the Telescope in Right Ascension (R.A.): The telescope should be properly balan
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focal lengths up to 1000mm and still enjoy a telescope that is relatively compact and portable. 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 Reflector telescopes do require more care and maintenance because the primary mirror is exposed to air and dust. However, this small drawback does not hamper this type of telescope’s popularity with those who want an ec
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T Th he e C Ce elle es sttiia all C Co oo or rd diin na atte e S Sy ys stte em m To help find objects in the sky, astronomers use a celestial coordinate system that is similar to our geographical coordinate system here on Earth. The celestial coordinate system has poles, lines of longitude and latitude, and an equator. For the most part, these remain fixed against the background stars. The celestial equator runs 360 degrees around the Earth and separates the northern celestial he
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Latitude Scales The easiest way to polar align a telescope is with a latitude scale. Unlike other methods that require you to find the celestial 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 relationship between your latitude and the angular distance the celestial pole is above the northern (or southern) horizon; The angular distance from
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Figure 10- Aligning the Equatorial mount to the polar axis of the Earth. F Fiin nd diin ng g t th he e N No or rt th h C Ce elle es st tiia all P Po olle 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 for the hemisphere in which they reside. For example, in the northern hemisphere all stars move around the north celestial pole. When the telescope's polar axis is p
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U Us siin ng g t th he e S Se et tt tiin ng g C Ciir rc clle es s Setting Circles are dials (or gauges) for right ascension and declination that allow you to locate celestial objects 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 the right ascension setting circle is incremented in minutes. The circles will get you close to your target but not directly on it. Also, the accuracy of your
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Eyepiece Magnification Mag. with 3x Barlow Lens 20mm 50x 150x 4mm 250x 750x T TE EL LE ES SC CO OP PE E M MA AIIN NT TE EN NA AN NC CE E With proper care, your telescope should rarely need any maintenance work. To maintain your telescope in the best possible condition, observe the follow suggestions: 1. When your telescope isn’t in use, replace all lens covers to keep dust and contaminants off the optical surfaces. 2. A small amount of dust on any optical surface isn’t a p
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Optional Accessories Optional Accessories 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 site at www.celestron.com. Eyepieces – An assortment of 1¼” eyepieces are available to give you a wide range of magnifications. • OMNI Plössl - Plössl eyepieces have a 4-element lens designed for low-to-high power observing. The Plössls offer razor sharp views ac
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CELESTRON TWO YEAR WARRANTY A. Celestron warrants this telescope to be free from defects in materials and workmanship for two years. Celestron will repair or replace such product or part thereof which, upon inspection by Celestron, is found to be defective in materials or workmanship. As a condition to the obligation of Celestron to repair or replace such product, the product must be returned to Celestron together with proof-of-purchase satisfactory to Celestron. B. The Proper Re
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Celestron 2835 Columbia Street Torrance, CA 90503 Tel. (310) 328-9560 Fax. (310) 212-5835 Web site at http//www.celestron.com Copyright 2005 Celestron All rights reserved. (Products or instructions may change without notice or obligation.) Printed in China #21049 01-05
