pacific 发表于 2025-3-26 23:11:58

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interrogate 发表于 2025-3-27 02:41:38

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新鲜 发表于 2025-3-27 07:53:42

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GULF 发表于 2025-3-27 13:07:11

Northern Summer (Southern Winter) Nebulae,ow is the time to take on Scorpius and Sagittarius, both with lots of nebulous gas and dust clouds to enjoy. Don’t overlook the smaller constellations: Corona Australis and Vulpecula, as an example, have several excellent nebulae that are worth some of your time under dark skies.

decode 发表于 2025-3-27 14:44:47

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遗传 发表于 2025-3-27 18:10:00

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CORD 发表于 2025-3-28 01:25:55

h is that it leaves gaps, and can be inconsistent in style and coverage. Discussing it with John Watson, the UK astronomy editor for Springer, we considered that it might be time for a more systematic and logic978-0-387-34521-5978-0-387-68621-9Series ISSN 1431-9756 Series E-ISSN 2197-6562

使厌恶 发表于 2025-3-28 04:57:04

h is that it leaves gaps, and can be inconsistent in style and coverage. Discussing it with John Watson, the UK astronomy editor for Springer, we considered that it might be time for a more systematic and logic978-0-387-34521-5978-0-387-68621-9Series ISSN 1431-9756 Series E-ISSN 2197-6562

可耕种 发表于 2025-3-28 09:01:46

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Fretful 发表于 2025-3-28 13:19:30

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查看完整版本: Titlebook: Nebulae and How to Observe Them; Steven R. Coe Book 2007 Springer-Verlag London 2007 Astronomer‘s.Coe.Nebulae.Observing.instruments.observ