Photoelectric activity of the shell staro And: New observations and discussion |
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| Authors: | Michele Bossi Gianantonio Guerrero Luciano Mantegazza Marco Scardia |
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| Institution: | (1) Osservatorio Astronomico di Brera, Milano-Merate, Italia |
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| Abstract: | Photoelectric observations of the shell staro And, obtained in 1979, are presented. The star shows variations of some hundredth of magnitudes during a few hours. The trend to retake the values of the luminosity and colour indices prior to the reduction happened between JD 42,714-27, seems to continue. We also give a qualitative model which explains satisfactorily the main features observed after the 1975 shell episode. |
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