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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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Osservazione e dati astrometrici
| Costellazione: | Dragone |
| Ascensione retta: | 19h00m27.50s |
| Declinazione: | +56°31'31.1" |
| Magnitudine apparente: | 8.765 |
| Distanza: | 3448.276 parsec |
| Moto proprio RA: | -7 |
| Moto proprio Dec: | -10.4 |
| B-T magnitude: | 8.555 |
| V-T magnitude: | 8.748 |
Cataloghi e designazioni:
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