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Table of Contents
Related Manuals for Celestron PowerSeeker 50AZ # 21039
Summary of Contents for Celestron PowerSeeker 50AZ # 21039
- Page 1 ® ® ● ● ● ● ● ●...
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Page 2: Table Of Contents
Table of Contents INTRODUCTION .......................... 3 ASSEMBLY ........................... 6 Setting up the Tripod ........................6 Attaching the Telescope Tube to the Mount................7 Moving the Telescope Manually ....................8 Installing the Diagonal & Eyepiece (Refractor) – 60AZ ............8 Installing the Diagonal & Eyepiece (Refractor) – 50AZ ............8 Installing the Eyepiece on the Newtonian .................. -
Page 3: Introduction
In addition, your PowerSeeker telescope is ideal for terrestrial observations which will open your eyes with its superb high power viewing. PowerSeeker telescopes carry a two year limited warranty. For details see our website at www.celestron.com Some of the many standard features of the PowerSeeker include: •... - Page 4 Figure 1-1 PowerSeeker 60AZ Refractor (PowerSeeker 50AZ Similar) Objective Lens Altitude Slow Motion Rod Assembly (not on 50AZ) Telescope Optical Tube Accessory Tray Finderscope Tripod Eyepiece Azimuth Lock (not on 50AZ) Diagonal Alt-Az Mount Focus Knob Altitude Locking Knob...
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Page 5: Assembly
Figure 1-2 PowerSeeker 76AZ Newtonian Finderscope Azimuth Lock Eyepiece Accessory Tray Collimation Adjustment Screws (in rear) Tripod Telescope Optical Tube Alt-Az Mount Primary Mirror Altitude Lock Altitude Slow Motion Rod Assembly Focus Knob... -
Page 6: Setting Up The Tripod
This section covers the assembly instructions for your PowerSeeker telescope. Your telescope should be set up indoor the first time so that it is easy to identify the various parts and familiarize yourself with the correct assembly procedure before attempting it outdoor. Each PowerSeeker comes in one box. -
Page 7: Attaching The Telescope Tube To The Mount
The telescope optical tube attaches to the altazimuth mount with the altitude slow motion rod assembly and the respective knobs for the 60AZ and 76AZ. The 50AZ attaches directly to the altazimuth mount head. Before starting, remove the objective lens cap (refractor) or the front opening cap (Newtonian). To mount the telescope tube to the mount for the 60AZ and 76AZ: Remove the protective paper covering the optical tube. -
Page 8: Moving The Telescope Manually
The PowerSeeker Alt-Az mount is easy to move wherever you want to point it. For the 60AZ and 76AZ the up and down (altitude) is controlled by the altitude locking knob (Figure 2-12). The side-to-side (azimuth) is controlled by the azimuth lock (Figure 2-12). When both knobs are loose you can find your objects easily (through the finderscope) and then lock the controls. -
Page 9: Installing The Eyepiece On The Newtonian
The eyepiece (or ocular) is an optical element that magnifies the image focused by the telescope. Without the eyepiece it would be impossible to use the telescope visually. Eyepieces are commonly referred to by focal length and barrel diameter. The longer focal length (i.e., the larger the number) the lower the eyepiece magnification (i.e., power). -
Page 10: Installing The Finderscope
To install the finderscope: Locate the finderscope (it will be mounted inside the finderscope bracket) – see Figures 1-1 and 1-2. Remove the knurled nuts on the threaded posts on the optical tube – see Figure 2-17. Mount the finderscope bracket by placing it over the posts protruding from the optical tube and then holding it in place thread on the knurled nuts and tightening them down. -
Page 11: Telescope Basics
A telescope is an instrument that collects and focuses light. The nature of the optical design determines how the light is focused. Some telescopes, known as refractors, use lenses, .and other telescopes, known as reflectors (Newtonians), use mirrors. Developed in the early 1600s, the refractor is the oldest telescope design. It derives its name from the method it uses to focus incoming light rays. -
Page 12: Image Orientation
resolve faint, distant objects. The image orientation changes depending on how the eyepiece is inserted into the telescope. When using a star diagonal with refractors, the image is right-side-up, but reversed from left-to-right (i.e., mirror image). If inserting the eyepiece directly into the focuser of a refractor (i.e., without the diagonal), the image is upside-down and reversed from left-to-right (i.e., inverted). -
Page 13: Determining Field Of View
aperture which is 48 to 84 times for the PowerSeeker 60AZ telescope. You can determine the magnification for your telescope the same way. Note on Using High Powers – Higher powers are used mainly for lunar and sometimes planetary observing where you can greatly enlarge the image, but remember that the contrast and brightness will be very low due to the high magnification. -
Page 14: Astronomy Basics
Up to this point, this manual covered the assembly and basic operation of your telescope. However, to understand your telescope more thoroughly, you need to know a little about the night sky. This section deals with observational astronomy in general and includes information on the night sky and polar alignment. To help find objects in the sky, astronomers use a celestial coordinate system that is similar to our geographical co- ordinate system here on Earth. -
Page 15: Motion Of The Stars
The daily motion of the Sun across the sky is familiar to even the most casual observer. This daily trek is not the Sun moving as early astronomers thought, but the result of the Earth's rotation. The Earth's rotation also causes the stars to do the same, scribing out a large circle as the Earth completes one rotation. -
Page 16: Celestial Observing
"Seeing Conditions" section later in this section. To increase contrast and bring out detail on the planetary surface, try using Celestron eyepiece filters. Although overlooked by many amateur astronomers, solar observation is both rewarding and fun. However, because the Sun is so bright, special precautions must be taken when observing our star so as not to damage your eyes or your telescope. -
Page 17: Observing Deep-Sky Objects
Deep-sky objects are simply those objects outside the boundaries of our solar system. They include star clusters, planetary nebulae, diffuse nebulae, double stars and other galaxies outside our own Milky Way. Most deep-sky objects have a large angular size. Therefore, low-to-moderate power is all you need to see them. Visually, they are too faint to reveal any of the color seen in long exposure photographs. - Page 18 Star hopping to the Andromeda Galaxy (M31) is a snap, since all the stars needed to do so are visible to the naked eye. Star hopping will take some getting used to and objects that don’t have stars near them that are visible to the naked eye are challenging.
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Page 19: Seeing Conditions
Viewing conditions affect what you can see through your telescope during an observing session. Conditions include transparency, sky illumination, and seeing. Understanding viewing conditions and the effect they have on observing will help you get the most out of your telescope. Transparency Transparency is the clarity of the atmosphere which is affected by clouds, moisture, and other airborne particles. -
Page 20: Astrophotography
During the last few years a new technology has evolved which makes taking superb images of the planets and moon relatively easy and the results are truly amazing. Celestron offers the NexImage (# 93712) which is a special camera and included is software for image processing. You can capture planetary images your first night out which rivals what professionals were doing with large telescopes just a few short years ago. -
Page 21: Telescope Maintenance
NOT sealed, the covers should be placed over the openings when not in use. This will prevent contaminants from entering the optical tube. Internal adjustments and cleaning should be done only by the Celestron repair department. If your telescope is in need of internal cleaning, please call the factory for a return authorization number and price quote. -
Page 22: Aligning The Primary Mirror
Aligning the Primary Mirror Now adjust the primary mirror screws to re-center the reflection of the small secondary mirror, so it’s silhouetted against the view of the primary. As you look into the focuser, silhouettes of the mirrors should look concentric. Repeat steps one and two until you have achieved this. - Page 23 It is best to use the optional collimation tool or collimating eyepiece. Look into the focuser and notice if the secondary reflection has moved closer to the center of the primary mirror. With Polaris or a bright star centered within the field of view, focus with either the standard ocular or your highest power ocular, i.e.
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Page 24: Optional Accessories
For the 60AZ & 76AZ only. Flashlight, Night Vision (# 93588) – The Celestron flashlight uses two red LED’s to preserve night vision better than red filters or other devices. Brightness is adjustable. Operates on a single 9-volt included battery. -
Page 25: Powerseeker Specfications
POWERSEEKER SPECIFICATIONS 21039 21041 21044 PS 50AZ PS 60AZ PS 76AZ Optical Design Refractor Refractor Newtonian Aperture 50mm (2.0") 60mm (2.4") 76mm (3.0") Focal Length 600mm 700mm 700mm Focal Ratio f/12 f/12 Optical Coatings fully coated fully coated fully coated Finderscope 5x24 5x24... - Page 26 Celestron 2835 Columbia Street Torrance, CA 90503 U.S.A. Tel. (310) 328-9560 Fax. (310) 212-5835 Website: www.celestron.com Copyright 2008 Celestron All rights reserved. (Products or instructions may change without notice or obligation.) Item # 21041-INST Printed in China $10.00 01-08...
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