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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: | Cigno |
| Ascensione retta: | 19h29m00.76s |
| Declinazione: | +39°56'10.1" |
| Magnitudine apparente: | 8.378 |
| Distanza: | 344.828 parsec |
| Moto proprio RA: | 0.1 |
| Moto proprio Dec: | -7.8 |
| B-T magnitude: | 8.36 |
| V-T magnitude: | 8.377 |
Cataloghi e designazioni:
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