背信 发表于 2025-3-27 00:47:06

http://reply.papertrans.cn/20/1919/191835/191835_31.png

libertine 发表于 2025-3-27 01:26:30

Building a Roll-Off Roof or Dome Observatory978-1-4939-3011-1Series ISSN 1431-9756 Series E-ISSN 2197-6562

发表于 2025-3-27 07:00:37

http://reply.papertrans.cn/20/1919/191835/191835_33.png

Sedative 发表于 2025-3-27 13:20:07

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

http://reply.papertrans.cn/20/1919/191835/191835_36.png

lesion 发表于 2025-3-27 22:28:54

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 CCD

nitroglycerin 发表于 2025-3-28 02:06:35

http://reply.papertrans.cn/20/1919/191835/191835_38.png

笨拙的你 发表于 2025-3-28 08:08:54

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 t

triptans 发表于 2025-3-28 11:15:21

http://reply.papertrans.cn/20/1919/191835/191835_40.png
页: 1 2 3 [4] 5 6
查看完整版本: Titlebook: Building a Roll-Off Roof or Dome Observatory; A Complete Guide for John Stephen Hicks Book 2016Latest edition Springer-Verlag New York 2016