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UBV beta Database for Case-Hamburg Northern and Southern Luminous Stars
A database of photoelectric UBV beta photometry for stars listed in theCase-Hamburg northern and southern Milky Way luminous stars surveys hasbeen compiled from the original research literature. Consisting of over16,000 observations of some 7300 stars from over 500 sources, thisdatabase constitutes the most complete compilation of such photometryavailable for intrinsically luminous stars around the Galactic plane.Over 5000 stars listed in the Case-Hamburg surveys still lackfundamental photometric data.
| Observational studies of Cepheids. II - BVRI photometry of 112 Cepheids
Over 4000 differentially determined photoelectric BVRI observations andthe resulting light curves are presented for 112 Cepheids accessiblefrom Northern Hemisphere observatories. The internal precision of thesedata is better than + or - 0.01 mag, and the accuracy of transformationto the Johnson BVRI system is nearly as good.
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Osservazione e dati astrometrici
| Costellazione: | Perseo |
| Ascensione retta: | 04h18m11.31s |
| Declinazione: | +48°43'11.8" |
| Magnitudine apparente: | 8.052 |
| Distanza: | 10000000 parsec |
| Moto proprio RA: | -0.5 |
| Moto proprio Dec: | -2.5 |
| B-T magnitude: | 9.183 |
| V-T magnitude: | 8.146 |
Cataloghi e designazioni:
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