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HD 61516


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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:07h38m15.59s
赤纬:-34°58'49.4"
视星:7.856
距离:189.394 天文距离
右阿森松适当运动:-0.5
赤纬适当运动:-5.7
B-T magnitude:7.945
V-T magnitude:7.864

目录:
适当名称
HD 1989HD 61516
TYCHO-2 2000TYC 7113-1341-1
USNO-A2.0USNO-A2 0525-05795806
HIPHIP 37167

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