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UvbyHbeta_ photometry of main sequence A type stars.
We present Stroemgren uvby and Hbeta_ photometry for a set of575 northern main sequence A type stars, most of them belonging to theHipparcos Input Catalogue, with V from 5mag to 10mag and with knownradial velocities. These observations enlarge the catalogue we began tocompile some years ago to more than 1500 stars. Our catalogue includeskinematic and astrophysical data for each star. Our future goal is toperform an accurate analysis of the kinematical behaviour of these starsin the solar neighbourhood.
| MK classification and photometry of stars used for time and latitude observations at Mizusawa and Washington
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| Photoelectric UBV photometry for 317 PZT and VZT stars
UBV data were taken of 317 stars to fill gaps in photoelectric recordsneeded for establishing a terrestrial reference frame for earthorientation purposes. The study supplied the magnitudes and colors andaided in identifying nearby stars without trigonometric parallaxes. Thesurvey averaged over three observations of each object. A complete tableof the V, B-V, U-B and number of observations of each object isprovided.
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Observation and Astrometry data
| Constellation: | アンドロメダ座 |
| Right ascension: | 23h13m01.53s |
| Declination: | +42°03'43.9" |
| Apparent magnitude: | 6.908 |
| Distance: | 197.628 parsecs |
| Proper motion RA: | -14 |
| Proper motion Dec: | -18 |
| B-T magnitude: | 7.189 |
| V-T magnitude: | 6.932 |
Catalogs and designations:
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