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UVBY beta photometry of peculiar B and A stars, discovered at Abastumani
Stromgren uvby photometry for 70 peculiar Bp, Ap, or Am type stars ispresented. The model grid of Relyea and Kurucz (1978) is used to obtaineffective temperatures and log g values, confirming the dwarf-nature ofAm stars. Good agreement is found between effective temperatures andequivalent spectral classes derived from the (b-y)0 values, although theA4-A5 stars in this sample may be cooler than normal stars ofluminosity-class III-V in this spectral range.
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Observation and Astrometry data
| Constellation: | Cepheus |
| Right ascension: | 21h20m12.47s |
| Declination: | +61°07'37.4" |
| Apparent magnitude: | 9.52 |
| Proper motion RA: | 4.9 |
| Proper motion Dec: | 3.3 |
| B-T magnitude: | 9.766 |
| V-T magnitude: | 9.541 |
Catalogs and designations:
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