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A classification of Be stars
Based upon a sample of 140 stars observed over 20 years for which about5,000 spectrograms are available, a classification scheme of Be stars ispresented. This is the first attempt to subdivide the Be star group intophysically significant subgroups, from which typical objects can beselected for further study. The four groups proposed are based upon adiscussion of spectrum characteristics, multicolor photometry,polarization, rotational velocities, UV spectral types and timevariability. Starting with the group membership of a Be star,predictions can be made of the future behavior of it.
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Gözlemler ve gökölçümü verileri
| Takýmyýldýz: | Oglak |
| Sað Açýklýk: | 21h24m08.41s |
| Yükselim: | -19°37'14.9" |
| Görünürdeki Parlaklýk: | 9.297 |
| özdevim Sað Açýklýk: | 10.6 |
| özdevim Yükselim: | -36.3 |
| B-T magnitude: | 9.801 |
| V-T magnitude: | 9.339 |
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