背信 发表于 2025-3-27 00:47:06
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Building a Roll-Off Roof or Dome Observatory978-1-4939-3011-1Series ISSN 1431-9756 Series E-ISSN 2197-6562骨 发表于 2025-3-27 07:00:37
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978-1-4939-3010-4Springer-Verlag New York 2016作茧自缚 发表于 2025-3-27 16:55:02
https://doi.org/10.1007/978-1-4615-5079-2 observing session. In the case of a non-computerized system, the tasks involved with centering Polaris with its required off-set for the North Celestial Pole is daunting enough night after night. Even with a computer-assisted “scope,” set-up time still involves the usual lugging of equipment out-of逃避责任 发表于 2025-3-27 20:51:09
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Extensions Of Uniform Space Notions,re ready to begin construction. Again, I cannot stress enough the importance of building an observatory that you will not outgrow. The observing limitations you experience today will not be what you can tolerate tomorrow. Larger aperture instruments will be within your economic grasp and larger CCDnitroglycerin 发表于 2025-3-28 02:06:35
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https://doi.org/10.1007/978-3-662-69102-1r wheeled casters, for example, flatten from prolonged periods of inactivity and hobble along the track base requiring a lot of force to move them. This is made worse by colder temperatures. A winch system consisting of stainless cable, various pulleys and a lot of preliminary “engineering” solves ttriptans 发表于 2025-3-28 11:15:21
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