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Titlebook: Choosing and Using a New CAT; Getting the Most fro Rod Mollise Book 2020Latest edition Springer Nature Switzerland AG 2020 Schmidt Cassegra

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樓主: FAD
21#
發(fā)表于 2025-3-25 04:57:52 | 只看該作者
Why a CAT?,t will open the depths of space to your gaze and allow you to visit the Moon, planets, and the strange and distant wonders of the universe. And you are not looking for just any telescope; you’re interested in a Schmidt Cassegrain telescope (SCT), whose full-color advertisements fill the pages of ast
22#
發(fā)表于 2025-3-25 08:27:04 | 只看該作者
23#
發(fā)表于 2025-3-25 12:33:18 | 只看該作者
24#
發(fā)表于 2025-3-25 16:38:27 | 只看該作者
Which CAT?, the Web tend to confuse more than enlighten. Is a fork mount best? Or, is a German equatorial mount better? Is any Schmidt Cassegrain the “right” catadioptric telescope? Might a Maksutov Cassegrain be best? All those models and all those options are enough to confuse anybody.
25#
發(fā)表于 2025-3-25 23:57:06 | 只看該作者
26#
發(fā)表于 2025-3-26 00:24:57 | 只看該作者
Accessorizing a CAT,eded. This has become especially true over the last decade. Telescope makers have had to cut fat to keep telescope prices low and competitive. They’ve done that in part by eliminating accessories much beyond a finder, a star diagonal, and an eyepiece of sometimes average quality. At a minimum, a new
27#
發(fā)表于 2025-3-26 05:28:13 | 只看該作者
28#
發(fā)表于 2025-3-26 10:45:49 | 只看該作者
Care and Feeding of a CAT, stars without some maintenance. The most frequent and important task for SCT users is collimation, the procedure for adjusting the alignment of the telescope’s mirrors. The late, renowned . columnist Walter Scott Houston once said, “Collimation is the number one killer of telescopes.” If an SCT is
29#
發(fā)表于 2025-3-26 15:13:12 | 只看該作者
Computerizing a CAT, details lacking in a telescope’s hand controller. Sure, the HC contains the locations of tens of thousands of deep sky objects, but what are they and where are they, exactly? The hand controller will probably display some rudimentary information about an object: that it’s a galaxy in Pegasus, for e
30#
發(fā)表于 2025-3-26 18:04:38 | 只看該作者
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