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Ýlgili Makaleler
Catalog of BV magnitudes and spectral classes of 6000 stars
The present catalog, compiled at the Abastumani Observatory, contains BVmagnitudes and spectral classes of about 6000 stars up to V(lim) = 13.0min five circular areas of 18 sq deg located near the salactic-equatorplane. The catalog is intended for star-statistics studies ofstar-formation regions.
| The value of R in Monoceros
Recent photometric and spectroscopic observations are used inconjunction with other data for early-type stars in northern Monocerosin order to investigate the local value of R (the ratio of total toselective extinction). From a variable-extinction analysis, it isconcluded that a ratio of approximately 3.2 is appropriate for thegeneral interstellar extinction in this region and that there is noevidence here for the existence of local anomalies. The two majorassociations Mon OB 1 and Mon OB 2 are clearly delineated and are foundto exhibit properties typical of such young stellar groups. Derivedproperties for a few interesting stars are presented.
| Polarization in NGC2244
Not Available
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Yeni bir Makale Öner
Ýlgili Baðlantýlar
Yeni Bir Baðlantý Öner
sonraki gruplarýn üyesi:
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Tekboynuz |
| Sað Açýklýk: | 06h33m34.66s |
| Yükselim: | +05°17'42.9" |
| Görünürdeki Parlaklýk: | 9.876 |
| özdevim Sað Açýklýk: | -3.3 |
| özdevim Yükselim: | -4.7 |
| B-T magnitude: | 10.014 |
| V-T magnitude: | 9.888 |
Kataloglar ve belirtme:
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