MIR
发表于 2025-3-23 10:29:03
Miriam Barnat,Vanessa K. Jänschlogue in the ICRS (see Sect. 5.1), its optical star positions are transplanted to a coordinate frame that is the closest contemporary approximation to an inertial system. This chapter discusses some of the details of such catalogue links.
细菌等
发表于 2025-3-23 15:46:21
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人造
发表于 2025-3-23 19:20:22
Gabi Reinmann,Eileen Lübcke,Anna HeudorferInternational Celestial Reference Frame, and the Hipparcos Catalogue is its optical realization (IAU 1999). Astrometrically, the ICRF is based on distant extragalactic radio sources that are observed from the Earth by means of VLBI.
Demulcent
发表于 2025-3-24 00:12:46
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火海
发表于 2025-3-24 05:04:16
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Mercantile
发表于 2025-3-24 09:28:21
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骑师
发表于 2025-3-24 13:11:00
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擦掉
发表于 2025-3-24 16:45:04
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BARGE
发表于 2025-3-24 22:38:04
Hipparcos catalogue tie With conventional celestial reference frames,logue in the ICRS (see Sect. 5.1), its optical star positions are transplanted to a coordinate frame that is the closest contemporary approximation to an inertial system. This chapter discusses some of the details of such catalogue links.
Nefarious
发表于 2025-3-24 23:17:11
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