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Positional reference stars in the Magellanic Clouds
The equatorial coordinates are determined of 926 stars (mainly ofgalactic origin) in the direction of the Magellanic Clouds at the meanepoch T = 1978.4 with an overall accuracy characterized by the meanvalues of the O-C coordinates, Sa = 0.35 arcsec and Sd = 0.38 arcsec,calculated from the coordinates of the Perth reference stars. Thesevalues are larger than the accuracy expected for primary standard stars.They allow the new positions to be considered as those of reliablesecondary standard stars. The published positions correspond to anunquestionable improvement of the quality of the coordinates provided inthe current catalogs. This study represents an 'astrometric step' in thestarting of a 'Durchmusterung' of the Magellanic Clouds organized by deBoer (1988, 1989).
| UBVRI photometry of FKSZ stars. III
UBVRI photometry in the Kron-Cousins system is presented for 118 starsin the Catalogue of Fundamental Faint Stars (Zverev, 1957) in thedeclination zone between -60 and -90 degrees. The observations were madebetween September, 1984 and March, 1987 at the European SouthernObservatory at La Silla, Chile. Tables of the photometric data aregiven, including star number, V magnitude, spectral types, and (B-V),(U-B), (V-R), and (R-I) color indices.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Kilicbaligi |
| Sað Açýklýk: | 06h11m51.38s |
| Yükselim: | -65°32'54.3" |
| Görünürdeki Parlaklýk: | 8.214 |
| Uzaklýk: | 416.667 parsek |
| özdevim Sað Açýklýk: | -10.7 |
| özdevim Yükselim: | 9.6 |
| B-T magnitude: | 10.167 |
| V-T magnitude: | 8.376 |
Kataloglar ve belirtme:
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