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HD 21100


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Ýlgili Makaleler

UBV photometry of stars whose positions are accurately known.
Photometric indices V, B-V, and U-B were measured for about 560 stars ofthe AGK3R and NPZT catalogs between BD declinations 11 deg and 23 deg,using the 40-cm Cassegrain telescope of the Kvistaberg Observatory fromApril 1986 to May 1987. The observation procedure and the reductiontechnique were the same as in the earlier papers of this series by Oja(1984, 1985, 1986, and 1987). The mean errors were calculated from theinternal consistency of the data. The accuracy was found to be the sameas for the earlier parts of the survey.

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Gözlemler ve gökölçümü verileri

Takýmyýldýz:Boga
Sað Açýklýk:03h24m44.64s
Yükselim:+14°58'25.8"
Görünürdeki Parlaklýk:8.154
Uzaklýk:137.931 parsek
özdevim Sað Açýklýk:0.1
özdevim Yükselim:-4.2
B-T magnitude:8.47
V-T magnitude:8.181

Kataloglar ve belirtme:
Özgün isimleri   (Edit)
HD 1989HD 21100
TYCHO-2 2000TYC 656-561-1
USNO-A2.0USNO-A2 0975-00747304
HIPHIP 15894

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