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HD 172404


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The diameter of 88 THISBE from its occultation of SAO 187124
The 7 October 1981 occultation of SAO 187124 by 88 Thisbe was observedat 12 sites. The occultation observations, together with informationabout the asteroid's light curve, give a mean diameter for Thisbe of 232± 12 km. This value is 10% larger than the previously publishedradiometric diameter of Thisbe.

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Observation and Astrometry data

Constellation:Sagittarius
Right ascension:18h40m52.56s
Declination:-20°29'46.8"
Apparent magnitude:9.208
Proper motion RA:46.9
Proper motion Dec:-19.6
B-T magnitude:9.966
V-T magnitude:9.271

Catalogs and designations:
Proper Names
HD 1989HD 172404
TYCHO-2 2000TYC 6288-1771-1
USNO-A2.0USNO-A2 0675-28564530
HIPHIP 91602

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