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HD 108671


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The distance and structure of the Coalsack. I - Photometric data
The results of UBV and H-beta photometry for 284 stars of spectral typesB to F located in the area of the dark cloud Coalsack are presented.Most of the present stars are brighter than 10.0 mag and are classifiedin the MK system of Houk and Cowley (1975). For each star, the bestvalues for the extinction and distance modulus are provided, withtypical estimated errors of + or - 0.08 mag for the extinction and + or- 0.32 mag for the distance modulus. Possible misclassifications andspectral peculiarities are noted for several of the stars.

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Observation and Astrometry data

Constellation:はえ座
Right ascension:12h29m38.71s
Declination:-66°35'55.0"
Apparent magnitude:9.252
Proper motion RA:-34.3
Proper motion Dec:-6.1
B-T magnitude:9.741
V-T magnitude:9.293

Catalogs and designations:
Proper Names   (Edit)
HD 1989HD 108671
TYCHO-2 2000TYC 8987-1854-1
USNO-A2.0USNO-A2 0225-14508999
HIPHIP 60950

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