foppish
发表于 2025-3-25 05:29:55
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AGGER
发表于 2025-3-25 07:35:06
Astrometry of Fundamental Catalogues978-3-642-57260-9Series ISSN 0941-7834 Series E-ISSN 2196-9698
会犯错误
发表于 2025-3-25 15:03:43
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虚构的东西
发表于 2025-3-25 16:10:07
https://doi.org/10.1007/978-3-658-21738-9on of a fundamental system of positions and proper motions of the stars. Utmost efforts are made to arrive at a catalogue of star positions that represents an inertial frame. The immediate purpose of the catalogue is to serve as the reference frame of positional astronomy. It should also fulfill the
diabetes
发表于 2025-3-25 22:20:08
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Granular
发表于 2025-3-26 00:49:27
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ARC
发表于 2025-3-26 07:17:20
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管理员
发表于 2025-3-26 11:11:10
Eileen Lübcke,Uta Riedel,Siska Simon belongs to the category of conventional fundamental catalogues. It does not differ fundamentally from the numerous radio catalogues produced during the preceding two decades. This catalogue is merely another member of the category of reference frames produced by the `observable method’ discussed in
背心
发表于 2025-3-26 13:51:46
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谆谆教诲
发表于 2025-3-26 17:05:31
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