控诉
发表于 2025-3-23 13:44:15
Why Astronomy?,e stars our thoughts turn to questions about the creation of the universe and the conditions of the Sun, the Moon, the planets, and ultimately our place in the cosmos. The book presents the substance of celestial bodies for the amateur observer: the objects of the Solar System: the Milky Way, and th
沙草纸
发表于 2025-3-23 17:06:02
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HAIL
发表于 2025-3-23 18:24:26
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inspired
发表于 2025-3-24 00:28:12
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MORPH
发表于 2025-3-24 02:30:14
Telescope Mountings, Drives, and Electrical Equipment, a complex structure of many parts and is far less easily comprehended than the optical path in the telescope; some parts are even more difficult for the amateur telescope maker to manufacture than a primary mirror..The emphasis of this chapter is placed on design principles. Practice-oriented publi
Guileless
发表于 2025-3-24 08:21:56
Astrophotography,icated to very specialised tasks in astronomy. This chapter is an attempt to give a brief overview of todays most relevant imaging tools (e.g. CMOS-based DSLR, traditional SLR, cooled CCD, webcam, CCTV-camera), and how they are applied to the main tasks in astrophography. In particular, the followin
Coronary
发表于 2025-3-24 12:11:42
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认为
发表于 2025-3-24 18:11:04
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Aggrandize
发表于 2025-3-24 20:06:32
Signals from Space: Radio Astronomy for Beginners,to the 1930s, there are still exciting things waiting to be discovered by open-minded observers. With the following chapter we hope to convey the fascination and educational potential of radio astronomy to lay-men, teachers and school students alike. To to this, we describe the first steps to succes
JEER
发表于 2025-3-25 01:58:01
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