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Adaptive Optics Photometry and Astrometry of Binary Stars
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| GPM - compiled catalogue of absolute proper motions of stars in selected areas of sky with galaxies.
Not Available
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| UBV photometry of stars whose positions are accurately known. III
UBV photometric observations of 417 stars at BD declination 35-49 degfrom the NPZT(74) catalog of Yasuda et al. (1982) and the AGK3R catalogof Corben (1978), obtained with the 40-cm Cassegrain reflector atKvistaberg Observatory during 1984-1985, are reported. The data arepresented in tables, and the mean errors per observation are given as0.016 mag in V, 0.011 mag in B-V, 0.012 mag in U-B for U less than 10,and 0.026 mag in U-B for U greater than 10.
| 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.
| Preliminary catalog of the declinations of 96 stars of the international program, compiled from Kitab PZT observations
Not Available
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Membro dei seguenti gruppi:
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Osservazione e dati astrometrici
| Costellazione: | Perseo |
| Ascensione retta: | 02h43m14.71s |
| Declinazione: | +39°21'58.4" |
| Magnitudine apparente: | 8.654 |
| Distanza: | 2500 parsec |
| Moto proprio RA: | 8.5 |
| Moto proprio Dec: | -11.8 |
| B-T magnitude: | 8.742 |
| V-T magnitude: | 8.662 |
Cataloghi e designazioni:
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