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HD 220597


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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:仙女座
右阿森松:23h24m46.57s
赤纬:+44°17'32.7"
视星:9.045
右阿森松适当运动:15.5
赤纬适当运动:0.1
B-T magnitude:9.263
V-T magnitude:9.063

目录:
适当名称
HD 1989HD 220597
TYCHO-2 2000TYC 3242-385-1
USNO-A2.0USNO-A2 1275-18382269
HIPHIP 115586

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