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The rapid photometric variability of some Ae/Be-star envelopes
The results of narrowband photometry of several Ae/Be stars of differenttypes are presented. The observations were performed with the CrimeanAstrophysical Observatory 70-cm AZT-8 telescope with a 5-channelphotoelectric spectrometer. Variability with a characteristic time ofseveral minutes to several days is found in the H-alpha and H-beta linesand in the region beyond the Balmer limit. Consideration is given tosome mechanisms which can explain this variability.
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Observation and Astrometry data
| Constellation: | わし座 |
| Right ascension: | 20h01m54.15s |
| Declination: | +05°53'42.1" |
| Apparent magnitude: | 8.858 |
| Proper motion RA: | 9.5 |
| Proper motion Dec: | 3 |
| B-T magnitude: | 9.1 |
| V-T magnitude: | 8.878 |
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