去是公开
发表于 2025-3-21 19:19:59
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头盔
发表于 2025-3-21 20:55:00
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FAR
发表于 2025-3-22 01:36:25
Prospects for Future Astrometric Missionsfor a mission within the next five years would be through a collaborative effort for a small, fast, cheap spacecraft which could be a precursor for future, larger, more accurate missions, which are under study.
negligence
发表于 2025-3-22 04:37:34
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箴言
发表于 2025-3-22 12:36:29
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Incompetent
发表于 2025-3-22 14:57:56
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别炫耀
发表于 2025-3-22 20:20:11
Denis: a Deep Near Infrared Southern Sky Surveyyear mainly dedicated to technical tests and pilot surveys of selected regions of high astronomical interest. In September 1996, approximately 3000 square degrees of the sky have been covered, and the survey should be completed in 1999.
Debate
发表于 2025-3-22 21:23:06
The Miyun 232 MHz General Catalogueatalogue, using a matching radius of 100 arcseconds. The remaining MGC objects were then matched with the B2/B3 (408 MHz), 4C (178 MHz), Texas (365 MHz, 1400 MHz) and 87GB (4.85 GHz) catalogues. 6850 MGC sources were found to lack any radio counterpart in these reference catalogues. It means 19.9% of sources listed in the MGC are probably new.
Endearing
发表于 2025-3-23 03:09:53
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GIDDY
发表于 2025-3-23 07:19:58
The Prospects of Large Surveys in Astronomyf the extent to which these two approaches—emphasis on instrumental capabilities, as contrasted to emphasis on sky coverage—also contribute to an increase in astrophysical understanding. Here, the distinction needs to be made between discovering a new phenomenon and understanding its underlying processes.