哎呦
发表于 2025-3-25 07:14:42
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语源学
发表于 2025-3-25 10:56:55
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连累
发表于 2025-3-25 12:25:27
https://doi.org/10.1007/978-3-662-28729-3akes it close to bright stars. It is particularly striking when a stellar occultation occurs: a star suddenly vanishes behind the eastern limb of the Moon, and then reappears on the other side after a certain interval. In total, there are about one thousand stars visible to the naked eye that the Mo
electrolyte
发表于 2025-3-25 15:58:53
https://doi.org/10.1007/978-3-662-32987-0served positions. This is therefore essentially the opposite to determining an ephemeris, where positions are obtained from known orbital elements. Any observation made from Earth at a specific time gives two spherical coordinates. We may chose whether these relate to the celestial equator (right as
反复拉紧
发表于 2025-3-25 20:59:21
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薄荷醇
发表于 2025-3-26 02:03:35
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Systemic
发表于 2025-3-26 06:41:43
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脖子
发表于 2025-3-26 08:57:13
tical observer. For me its most remarkable feature is the library of interrelated program modules, all elegantly written in PAS CAL. Anyone who has tried to create such modules in interpreted BASIC soon runs i978-3-662-03349-4
羽饰
发表于 2025-3-26 13:48:13
Coordinate Systems,nates given in one system to those of another. The COCO (‘Coordinate Conversion’) program is designed to do just this. It provides accurate conversions between ecliptic and equatorial coordinates, and between geocentric and heliocentric coordinates, for various epochs. The individual transformations
reptile
发表于 2025-3-26 17:01:49
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