28 Apr
2022
28 Apr
'22
6:46 a.m.
ES Dra: orbital period and negative superhumps
From TESS data. Porb=0.1774756(6) d (0.017 mag). In 2020 Feb.-Mar., negative superhumps and beat phenomenon were observed. P(NSH)=0.167891(8) d.
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Taichi Kato