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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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Observation and Astrometry data
| Constellation: | Οφιούχος |
| Right ascension: | 18h17m16.49s |
| Declination: | +11°51'57.4" |
| Apparent magnitude: | 9.697 |
| Proper motion RA: | 0.3 |
| Proper motion Dec: | -7.5 |
| B-T magnitude: | 9.675 |
| V-T magnitude: | 9.696 |
Catalogs and designations:
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