Related Manuals for Coleman CDB804AZ3
Summary of Contents for Coleman CDB804AZ3
- Page 1 CDB804AZ3 Please retain the packaging and instructions for further reference, as they contain important information. INTRODUCTION:...
- Page 2 With the proper care and handling of your telescope, you will enjoy years of viewing pleasure. As an astronomical device, the CDB804AZ3 telescope has been designed for both a beginner and advanced star gazer. It provides views of the moon and planets, as well as dozens of galaxies, star clusters, and nebulae.
- Page 3 PARTS LIST FOR CDB804AZ3 Telescope: PARTS LIST A. Dust Cap / Mask (Remove before Viewing) B. Dew Cap/ Sun Shade C. Objective Lens D. Telescope Optical Tube E. Red Dot Finder Assembly F. Alignment screws G. Focusing Tube H. Eyepieces (K10, K25), Eyepiece cases (2) I.
- Page 4 I. ASSEMBLY: 1) Carefully remove all parts from the cardboard cartons and lay them on a table, floor or other flat surface in order to take an inventory of all the pieces. Keep your box for storage or in case you ever need to ship your telescope. 2) Tripod Set Up: A.
- Page 5 3) Attaching the Telescope Main Body to the Tripod Position the telescope main body (E) on top of the tripod head, aligning it to the fixing screws. Connect the telescope optical tube to the tripod head and secure it in place by tightening the fixing screws (see Figure 3).
- Page 6 5) Attaching the Diagonal and Eyepiece A. Loosen the thumbscrew on the end of the focus tube. B. Insert the diagonal into the focus tube and re-tighten the thumbscrew to hold the diagonal in place. C. Loosen the thumbscrews on the diagonal. D.
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Page 7: Operating Your Telescope
II. OPERATING YOUR TELESCOPE: 1 ) Using the Red Dot Finder The Red Dot Finder is a zero magnification pointing tool that uses a coated glass window to super-impose the image of a small red dot onto the night sky. The Red Dot Finder is equipped with a variable brightness control, azimuth adjustment control, and altitude adjustment control. - Page 8 2) Operating the AZ3 mount This mount has controls for movement in altitude (up-down) and azimuth (left-right). Coarse azimuth movement is controlled by a locking knob located near the tripod head for left-right rotation. Loosen the knob to make large direction changes then lock it for fine adjustments.
- Page 9 4) Pointing your telescope Pointing an altitude-azimuth (alt-az) mounted telescope is relatively easy. With the mount level, you can swivel the telescope around on a plane parallel to your horizon and then tilt it up and down from there. You can think of it as turning your telescope in azimuth until it is facing the horizon below a celestial object and then tilting it up to the object's altitude.
- Page 10 6) Calculating the field of View The size of the view that you see through your telescope is called the true (or actual) field of view and it is determined by the design of the eyepiece. Every eyepiece has a value, called the apparent field of view, which is supplied by the manufacturer.
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Page 11: Observing The Sky
III. OBSERVING THE SKY 1) Sky Conditions Sky conditions are usually defined by two atmospheric characteristics, seeing, or the steadiness of the air, and transparency, light scattering due to the amount of water vapour and particulate material in the air. When you observe the Moon and the planets, and they appear as though water is running over them, you probably have bad "seeing"... -
Page 12: Using Your Telescope
IV. ABOUT YOUR REFRACTOR TELESCOPE: Your telescope has a refractor type optical design. It uses lenses to gather and focus light. The combination of the front objective lens and eyepiece gathers more light than the human eye is able to collect on its own, focus it, and present the viewer with a brighter, clearer, and magnified virtual image. - Page 13 When viewing through a standard telescope, you may notice that when you observe a terrestrial object on land or water, it appears upside down. To correct this, the COLEMAN CDB804AZ3 is equipped with an Erecting Image Diagonal Prism (I). This accessory is inserted in the eyepiece holder of the telescope between the eyepiece and the telescope.
- Page 14 The Planets The planets, our solar system companions, range in size and substance from moon-size rocky bodies to giant gas balls, which could hold Earth 1,000 times over. To find the planets, you will need information about their times of visibility. The included Astronomical Software CD or an astronomy magazine will give you the locations of the planets as they change position from month to month.
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Page 15: Frequently Asked Questions
ABOUT THE INCLUDED ASTRONOMY SOFTWARE CD Navigate the heavens like the professionals. TheSkyX First Light Edition makes an ideal companion to best enjoy your new telescope. Its intuitive user-interface always keeps you grounded while exploring the wonders of the night sky. Point and click to learn the names and coordinates of celestial objects. - Page 16 Made in China...