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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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Takýmyýldýz: | Erbogan |
Sað Açýklýk: | 13h13m35.15s |
Yükselim: | -63°06'09.9" |
Görünürdeki Parlaklýk: | 8.427 |
Uzaklýk: | 10000000 parsek |
özdevim Sað Açýklýk: | 1.4 |
özdevim Yükselim: | -3.4 |
B-T magnitude: | 8.607 |
V-T magnitude: | 8.442 |
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