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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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Сазвежђа: | Змијоносац |
Ректацензија: | 18h17m16.49s |
Deклинација: | +11°51'57.4" |
Apparent магнитуда: | 9.697 |
Proper motion RA: | 0.3 |
Proper motion Dec: | -7.5 |
B-T magnitude: | 9.675 |
V-T magnitude: | 9.696 |
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