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astrometry
The careful, precise measurement of astronomical objects, usually made with respect to standard catalogues of star positions. For comet orbit computations, astrometry good to 1" or 2" (1 or 2 arc seconds), or better, is the standard nowadays.
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- Part of Speech: noun
- Synonym(s):
- Blossary:
- Industry/Domain: Astronomy
- Category: General astronomy
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