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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.
| 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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| Сазвежђа: | Лабуд |
| Ректацензија: | 20h29m11.08s |
| Deклинација: | +47°06'17.5" |
| Apparent магнитуда: | 8.719 |
| Даљина: | 203.666 parsecs |
| Proper motion RA: | 20.6 |
| Proper motion Dec: | 7.1 |
| B-T magnitude: | 9.027 |
| V-T magnitude: | 8.745 |
Каталог и designations:
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