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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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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Okcuk |
| Sað Açýklýk: | 19h58m47.94s |
| Yükselim: | +21°23'42.6" |
| Görünürdeki Parlaklýk: | 8.871 |
| özdevim Sað Açýklýk: | 0.7 |
| özdevim Yükselim: | -7.6 |
| B-T magnitude: | 8.899 |
| V-T magnitude: | 8.874 |
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