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arxiv: 0708.1864 · v1 · pith:IT4CVNIVnew · submitted 2007-08-14 · 🌌 astro-ph

Results of the photometry of the spotted dM1-2e star EY Draconis

classification 🌌 astro-ph
keywords draconislightseasonspottedstararchivalbrightnessbudapest
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We have observed EY Draconis with the 24`` telescope of Konkoly Observatory in Budapest for 64 nights. In the first obse rving season the star produced a stable light curve for more than 60 rotation periods, however, the light curves observe d in the next season and the spot modelling show clear evidence of the evolution of the spotted stellar surface. The chan ges of the maximum brightness level suggests the existence of a longer period of about 300 days, which seems to be confir med by the ROTSE archival data.

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