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CELESTRON CI-700 / CM-1100 / CM-1400
INSTRUCTION MANUAL
Models #91525 / #11055 / #11065
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The Celestron CM-11 00/1400 Copyright © 1998 Celestron International 2835 Columbia Street Torrance, CA 90503 (310) 328-9560 No part of this manual may be reproduced in any form or by any means, electronic or mechanical, including photocopy- ing, recording, or by any information storage and retrieval system, without written permission from Celestron Interna- tional. Celestron International provides this manual “as is” without warranty of any kind, either expressed or implied, including but not
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T A B L E O F C O N T E N T S INTRODUCTION .................................................................................................................................. 1 How to Use this Manual ..................................................................................................................... 2 A Word of Caution ............................................................................................................................. 2 The Schmidt-Cass
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USING THE DRIVE .............................................................................................................................37 Powering Up the Drive ......................................................................................................................37 Guide Speed ....................................................................................................................................38 Tracking Rate Selection .............................
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INTROD U CTION Welcome to the Celestron world of amateur astronomy! For more than a quarter of a century, Celestron has provided amateur astronomers with the tools needed to explore the universe. The Celestron CM-1100 and CM-1400 continues in this proud tradition combining large aperture optics with ease of use and portability. With a mirror diameter of 11 inches, your Celestron CM- 1100 has a light gathering power of 1,593 times that of the unaided human eye, and the CM-1400 has a light gath
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How to Use This This manual is designed to instruct you in the proper use of your Celestron Manual CM-1100 telescope. The instructions are for assembly, initial use, long term operation, and maintenance. There are seven major sections to the manual. The first section covers the proper procedure for setting up your Celestron CM- 1100 telescope. This includes setting up the tripod, attaching the telescope to the mount, balancing the telescope, etc. The second section deals with the basics of te
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DREN ARE PRESENT OR ADULTS WHO MAY NOT BE FAMILIAR WITH THE CORRECT OPERATING PROCEDURES OF YOUR TELESCOPE. NEVER POINT YOUR TELESCOPE AT THE SUN UNLESS YOU HAVE THE PROPER SOLAR FILTER. WHEN USING YOUR TELESCOPE WITH THE CORRECT SOLAR FILTER, ALWAYS COVER THE FINDER. ALTHOUGH SMALL IN APERTURE, THIS INSTRUMENT HAS ENOUGH LIGHT GATHER- ING POWER TO CAUSE PERMANENT AND IRREVERSIBLE EYE DAMAGE. IN ADDITION, THE IMAGE PROJECTED BY THE FINDER IS HOT ENOUGH TO BURN SKIN OR CLOTHING. A telescope is
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ASSEMBLING YOUR CM-1100 This section covers the assembly instructions for your Celestron CM-1100 telescope. The Celestron CM-1100 should be set up indoors the first time so that it is easy to identify the various parts and familiarize yourself with the correct assembly procedure before attempting it outdoors. The Celestron CM-1100 is a standard 11" Schmidt-Cassegrain telescope on a heavy-duty German equatorial mount. The Celestron CM-1100 comes stan- dard with Starbright ™ enhanced multilayer
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1 16 2 15 3 14 4 13 12 5 11 6 10 7 9 8 CM-1100 Figure 2-1 1. Optical Tube 9. Center Leg Brace 2. Finderscope 10. Counterweight 3. Star Diagonal 11. Counterweight Bar 4. Eyepiece 12. R.A. Clutch Knob 5. Polar Axis Finderscope 13. DEC Clutch Knob 6. Drive Control Electronics 14. Mounting Platform Clamp Knob 7. Hand Control 15. Dovetail Slidebar 8. Tripod 16. Objective Lens Cover Assembling Your CM-1100 5
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Setting Up the Tripod The tripod legs attach to a central column which together form the tripod to which the equatorial mount attaches. The tripod comes with two leg support brackets; a collapsible one that is already attached to the lower legs and a removable one that must be attached. To set up the tripod: 1. Stand the tripod vertically on a level surface, with the feet facing down (See Figure 2-2). 2. Grab the lower portion of two of the tripod legs and lift them slightly off the ground so
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Attaching the Center For maximum rigidity, the CI 700 tripod has a center leg brace that installs on to the threaded rod below the tripod head. This brace fits snugly against the Leg Brace tripod legs, increasing stability while reducing vibration and flexure. To attach the center leg brace: 1 Unscrew the tension knob from the threaded rod beneath the tripod head. 2 Place the center leg brace onto the threaded rod so that the cup on the end of each bracket contours to the curve of the tripod l
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Attaching the Equatorial Mount After the tripod is set up, you are ready to attach the equatorial mount. The equatorial mount is the platform to which the telescope attaches and allows you to move the telescope in right acsension and declination. The mount is also adjustable so you can orient the axis of rotation so that it is parallel with the Earth’s axis of rotation (see the section on “Polar Alignment”). To attach the equatorial mount to the tripod: 1. Insert the base of the equatorial mo
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Installing the To properly balance the telescope, the mount comes with a counterweight bar Counterweight Bar and one counterweight (the CM-1400 comes with two counterweights). The counterweight bar is located in the same box as the Equatorial Mount Head — in a cutout along the bottom of the shipping box. To install the counterweight bar: 1. Locate the opening in the equatorial mount on the DEC axis (see figure 2- 6). It is opposite the telescope mounting platform. 2. Thread the counterweight
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The telescope attaches to the mount via a dovetail slide bar which is mounted Attaching the Optical along the bottom of the telescope. Before you attach the optical tube, make Tube to the Mount sure that the declination and right ascension clutch knobs are tight. This will ensure that the mount does not move suddenly while attaching the telescope. To mount the telescope tube: 1 Loosen the knobs on the side of the telescope mounting platform. This allows you to slide the dovetail bar on the te
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The visual back is the accessory that allows you to attach all visual accesso- Attaching the Visual ries to the telescope. To attach the visual back: Back 1. Remove the plastic cover on the rear cell. 2. Place the knurled slip ring on the visual back over the threads on the rear cell. 3. Hold the visual back with the set screw in a convenient position and rotate the knurled slip ring clockwise until tight. Once this is done, you are ready to attach other accessories, such as eye- pieces, diagon
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Installing the Eyepiece Installing the Eyepiece Installing the Eyepiece Installing the Eyepiece Installing the Eyepiece The eyepiece, or ocular, is an optical element that magnifies the image focused by the telescope. The ocular(s) fit into either the visual back directly, the star diagonal, or the Erect Image Diagonal (purchased separately). To install an ocular: 1. Loosen the set screw on the star diagonal until the tip no longer extends into the inner diameter of the eyepiece end of the dia
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The CM-1100 telescope come with a 9x50 finderscope used to help you locate Installing the Finder Installing the Finder Installing the Finder Installing the Finder Installing the Finder and center objects in the main field of your telescope. To accomplish this, the finder has a built-in cross-hair reticle that shows the optical center of the finderscope. Start by removing the finder and hardware from the plastic wrapper. Included are the following: • 9x50mm Finder • Finder Bracket • Rubber O-r
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Installing the Polar Installing the Polar Installing the Polar Installing the Polar Installing the Polar To aid in polar aligning the mount, your telescope comes standard with a Polar Finder Finder Finder Finder Finder Housing Finder. It installs directly on top of the polar housing of the mount. To install the Polar Finder: 1. Locate the Polar Finder assembly. The Polar Finder assembly consists of the polar finder, mounting bracket and knurled mounting screw (see Figure 2.11). 2. Place the
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Moving the Telescope Moving the Telescope Moving the Telescope Moving the Telescope Moving the Telescope Once set up, you need to point your telescope at various portions of the sky to in R.A. and DEC in R.A. and DEC in R.A. and DEC in R.A. and DEC in R.A. and DEC observe different objects. To make rough adjustments, loosen the R.A. and DEC clutch knobs slightly and move the telescope in the desired direction. Both the R.A. and DEC axis have two knobs to clutch down each axis of the telescope.
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Adjusting the Mount Adjusting the Mount Adjusting the Mount Adjusting the Mount Adjusting the Mount In order for the clock drive to track accurately, the telescope’s axis of rotation must be parallel to the Earth’s axis of rotation, a process known as polar alignment. Polar alignment is achieved NOT NOT NOT NOT NOT by moving the telescope in R.A. or DEC, but by adjusting the mount vertically, which is called altitude, and horizontally, which is called azimuth. This section simply covers the co
