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HD 169928


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Optical observations of ultraviolet objects. II - Classification and photometry /l = 0 to 145 deg/
UBV photometry and MK spectral classification are presented for a sampleof stars originally selected as UV objects from satellite photometrywith the S2/68 experiment. Although most stars of the sample arespectroscopically normal, a number of hot, subluminous stars were alsofound. Radial velocities are given for some of the stars observed. It isproposed that the majority of the apparently normal early B stars athigh galactic latitudes which are not runaway stars are subluminousdisc-population analogues of horizontal branch B stars of Population II.

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观测天体数据

星座:武仙座
右阿森松:18h26m15.52s
赤纬:+18°52'09.9"
视星:8.433
距离:990.099 天文距离
右阿森松适当运动:2.7
赤纬适当运动:-4.3
B-T magnitude:8.342
V-T magnitude:8.426

目录:
适当名称   (Edit)
HD 1989HD 169928
TYCHO-2 2000TYC 1577-196-1
USNO-A2.0USNO-A2 1050-10509416
HIPHIP 90357

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