Titlebook: AstroFAQs; Questions Amateur As Stephen F. Tonkin Book 2000 Springer-Verlag London 2000 Telescopes/Binoculars and Observing.astronomy.photo

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書(shū)目名稱AstroFAQs影響因子(影響力)




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書(shū)目名稱AstroFAQs網(wǎng)絡(luò)公開(kāi)度




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Miscellaneous,hen warmer, moist air cools down, there will come a point where it is saturated and will begin to give up its moisture. The principles of dew reduction are then simple: reduce the amount of cooling of the optical surfaces and reduce the amount of warm moist air (e.g. breath) that comes into contact with them.

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Formeln und Tabellen MaschinenbauIn order to track an object successfully with a single motion, the polar (RA) axis of an equatorial mount must be parallel to the axis of rotation of the Earth.

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https://doi.org/10.1007/978-3-8348-2313-7To get the best out of a telescope for astronomy, it helps if you understand how it works. A telescope, when used for astronomy, serves three functions: it magnifies, it increases light grasp, and it increases resolution.

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Formeln und Tabellen MaschinenbauWe imagine that astronomical objects are projected onto a celestial sphere, centred upon the Earth. The Earth’s North and South poles are projected to the North Celestial Pole (NCP) and South Celestial Pole (SCP), respectively. The Earth’s equatorial plane passes through the Celestial Equator (see Figure 5.1).