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[vsnet-nl 66] BZ Cam fading!
- Date: Tue, 13 Feb 2001 22:23:45 +0900 (JST)
- To: vsnet-alert, vsnet-campaign, vsnet-nl
- From: Taichi Kato <tkato>
- Subject: [vsnet-nl 66] BZ Cam fading!
- Sender: owner-vsnet-nl@kusastro.kyoto-u.ac.jp
BZ Cam fading!
M. Reszelski and H. Itoh independently detected the sudden fading of
the VY Scl-type variable BZ Cam. The last fading (the second historical
fading) of BZ Cam occurred in 1998, which was discovered by T. Watanabe.
See the footnote for the 1998 fading. Some time-series photometry
was obtained during the 1998 fading (Uemura et al.). Similar time-series
photometry would be desirable during the present fading, which seems to
be of different nature from the 1998 one in its rate of fading.
YYYYMMDD(UT) mag observer
20001208.758 121 (H. Maehara)
20001209.817 122 (H. Maehara)
20001222.919 127 (P. A. Dubovsky)
20001223.589 122 (T. Watanabe)
20001223.678 122 (H. Itoh)
20001223.742 122 (H. Maehara)
20001229.803 122 (H. Itoh)
20010101.599 121 (H. Maehara)
20010103.633 122 (H. Maehara)
20010103.701 123 (T. Watanabe)
20010106.635 122 (H. Itoh)
20010112.637 121 (H. Itoh)
20010116.824 126 (P. A. Dubovsky)
20010117.542 123 (T. Watanabe)
20010118.812 125 (P. A. Dubovsky)
20010211.025 131 (M. Reszelski)
20010211.526 131 (H. Itoh)
The 1998 fading:
[vsnet-alert 3544]
Tsutomu Watanabe (VSOLJ) reports that the VY Scl-type variable BZ Cam
(also known as a pernament superhumper) may be fading. Observers are
strongly urged to monitor its behavior, and time-series CCD observations of
superhumps are encouraged.
[vsnet-alert 3551]
From our observation on BZ Cam (VY Scl-type variable) of 3 Oct. (UT),
we confirmed BZ Cam fading about 1 mag. compared with the magnitude
of last year. This is the second time of the fading phase in
the history of the observation on BZ Cam. The follow-up observation
is encouraged.
Regards,
VSNET Collaboration team
vsnet-adm@kusastro.kyoto-u.ac.jp