I N T R O D U C T I O N 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.
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.
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 platform.
To balance the telescope in DEC: 1. Release the R.A. clamp and rotate the telescope so that it is on one side of the mount (i.e., as described in the previous section on balancing the telescope in R.A.).Lock the R.A. clamp to hold the telescope in place. Release the DEC clamp and rotate the telescope until the tube is parallel to the ground (see figure 4).
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.
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.
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).
For example, in the northern hemisphere all stars move around the north celestial pole. When the telescope's polar axis is pointed at the celestial pole, it is parallel to the Earth's rotational axis.
The magnification (or power) of a telescope varies depending upon the focal length of the eyepiece being used and the focal length of the telescope. The PowerSeeker 127 telescope has a focal length of 1000mm and comes with a 20mm 1¼" eyepiece. To calculate magnification, use the following formula, in which FL = focal length: Therefore, if you use the 20mm eyepiece your magnification is 1000/20 = 50x.
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 problem and doesn’t need to be removed. If the dust builds up, then use a can of compressed air and a camels hair brush to remove the dust.
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.
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.
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...