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HD 60221


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Distribution of B5 to A5 stars at (l, b) = (253 deg, -7 deg)
A study to V of about 12 mag is conducted for the distribution ofinterstellar extinction and early type stars (up to A5) in the (l, b) =(253 deg, -7 deg) field. The space density of B5, B8-A0, and A2-A5 starsis found to be normal for a field outside the galactic plane, and thestellar and extinction data indicate that the direction in question liesout of the matter plane of the Milky Way at least to 3 kpc. The higherextinction of Bochun 15 and the absence of background galaxies, however,suggest the possible presence of the galactic warp at -7 deg, atdistances beyond about 5 kpc, as well as a total higher extinction thanthe maximum of E(B-V) = 0.53 for d greater than 10 kpc, as found at (l,b) = (245 deg, zero deg).

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观测天体数据

星座:船尾座
右阿森松:07h31m57.81s
赤纬:-35°15'32.2"
视星:9.02
右阿森松适当运动:9.3
赤纬适当运动:19.4
B-T magnitude:9.61
V-T magnitude:9.069

目录:
适当名称   (Edit)
HD 1989HD 60221
TYCHO-2 2000TYC 7113-1099-1
USNO-A2.0USNO-A2 0525-05415959
HIPHIP 36628

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