Date: Tue, 13 Apr 93 18:18:23 JST
From: tkato@kusastro.kyoto-u.ac.jp (Taichi Kato)
Subject: revised superhump period of TT Boo
TT Bootis (SU UMa-type dwarf nova)
Four additional superhump maxima have been obtained by subsequent
V-band CCD observations at Ouda Station (60-cm refl., Nara, Japan).
Least-squares fit to the observed maxima yields following revised
superhump period.
Max.UT = Apr. 10.610 + 0.07523 E
observed superhump maxima
UT E O-C
10.610 0 -0.000
10.685 1 -0.000
10.761 2 0.001
12.565 26 -0.001
12.639 27 -0.002
12.717 28 0.001
12.794 29 0.002
Two-day alias of 0.07816 day is still possible, but gives much larger
residuals.
Regards,
Taichi Kato (Kyoto University)

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