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[vsnet-alert 3904] QY Per: Bad news/good news
- Date: Fri, 31 Dec 1999 22:45:40 -0800 (PST)
- To: cba-news <cba-news@astro.bio2.edu>, VSNET-Alert <vsnet-alert@kusastro.kyoto-u.ac.jp>
- From: Lew Cook <lcoo@yahoo.com>
- Subject: [vsnet-alert 3904] QY Per: Bad news/good news
- Sender: owner-vsnet-alert@kusastro.kyoto-u.ac.jp
Bad news:
It is cloudy here in Northern California tonight (New Year's Eve). No
observations of QY Per tonight.
The Good News:
The clouds have given me time to run the second night's observations
thru the reduction programs.
Light Curves:
http://vsnet.geocities.com/lcoo/QYPer542.gif - Dec. 30 UT
http://vsnet.geocities.com/lcoo/QYPer543.gif - Dec. 31 UT
Data forwarded to Taichi Kato.
Findings:
Superhumps with period 0.076 +/- 0.03 (est) PDM/AVE over about 3
cycles.
Superhump amplitude (max-min) =0.30 magnitude approximately.
The brightness of the star at the peak of the superhumps on JD
2451543.7 is the same as previous night on the first 2 peaks, but
perhaps a litle less on the third peak. The bottom of superhump cycle
is fainter by ~0.1 magnitude than the previous night - the amplitude
of the superhump cycle increased by becoming fainter at minimum.
Happy New Year!
=====
Regards, Lew
http://vsnet.geocities.com/lcoo/
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