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HD 189823


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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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观测天体数据

星座:天鷹座
右阿森松:20h01m54.15s
赤纬:+05°53'42.1"
视星:8.858
右阿森松适当运动:9.5
赤纬适当运动:3
B-T magnitude:9.1
V-T magnitude:8.878

目录:
适当名称   (Edit)
HD 1989HD 189823
TYCHO-2 2000TYC 506-2266-1
USNO-A2.0USNO-A2 0900-17462427

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