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Orion #9823 manual

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Table of contents for the manual

  • Page 1

    INSTRUCTION MANUAL IN 161 Rev . C 02/09 Providing Exceptional Consumer Optical Products Since 1975 Customer Support (800) 676-1343 E-mail: support@telescope.com Corporate Offices (831) 763-7000 89 Hangar W ay , W atsonville, CA 95076 Orion ® Apex ™ Maksutov-Cassegrain Optical T ube Assemblies ™ #9820 Apex 90mm #9823 Apex 102mm #9825 Apex 127mm[...]

  • Page 2

    W elcome to a new world of adventure! Y our Apex Maksutov-Casseg rain (Mak-Cass) telescope is a fine-quality instrument designed f or both daytime terrestrial viewing and nighttime stargazing. Compact, por tab le, and easy to use, this versatile scope will provide many hours of enjo yment f or the whole f amily . These instructions will help you se[...]

  • Page 3

    3 Getting Started The Apex telescopes come near ly fully assembled from the f actor y . The optics hav e been installed and collimated, so you should not hav e to make any adjustments to them. Open the bo x and inspect the contents to make sure all of the par ts listed above are present. Refer to Figure 1 to see what the par ts look like, and how t[...]

  • Page 4

    4 Camera tripods or altazimuth mounts are desireable for ter - restrial (land) vie wing because the y allow simple vertical and horizontal mov ement of the telescope. An equator ial mount is desirab le for astronomical viewing because it allows easy trac king of celestial objects as the Earth rotates. Also , the set- ting circles on the mount enabl[...]

  • Page 5

    5 and less shar p (this is a fundamental law of optics). The steadiness of the air (the “seeing”) can also limit how much magnification an image can tolerate. Alwa ys star t vie wing with your lowest-power (longest focal length) ey epiece in the telescope. It’ s best to begin obser ving with the lowest-pow er ey epiece, because it will typica[...]

  • Page 6

    6 it nev er wanders too f ar from the mor ning or ev ening hor izon. No surface mar kings can be seen on V enus, which is alw ays shrouded in dense clouds. MARS If atmo spher ic condi tions ar e good, you may be able to see some subtle surf ace detail on the Red Planet, possibly e ven the polar ice cap . Mars mak es a close approach to Earth e ver [...]

  • Page 7

    7 optics. Wipe the lens gently in a circular motion, then remo ve any e xcess fluid with a fresh lens tissue. Oily finger prints and smudges may be removed using this method. Use caution; rubbing too hard may scr atch the lens. For the large surf ace of the meniscus lens, clean only a small area at a time, using a fresh lens tissue on each area. Ne[...]

  • Page 8

    8 Orion T elescopes & Binoculars 89 Hangar W ay , Watsonville, CA 95076 Customer Support Help Line (800) 676-1343 • Day or Evening One-Y ear Limited W arranty The Ape x Maksutov-Cassag rain Optical T ube Assemblies are warranted against def ects in materials or workmanship f or a per iod of one year from the date of purchase. This warranty is[...]