[vsnet-obs 25809] QY Per in rapid decline stage

["Tonny Vanmunster" <Tonny.Vanmunster@advalvas.be>]

Dear Colleagues,

QY Per now seems to have entered its rapid decline stage. I started observing the object at 19h11m UT (2000, Jan 09), using the 0.35-m f/6.3 telescope with ST-7 CCD (unfiltered) and I hope to be able to continue for a couple of extra hours (sky conditions are quite favorable now). Details : 

2000 01 09.799 UT, mag 16.3 C
2000 01 09.899 UT, mag 16.6 C

Analysis of superhumps (if left) will start later ...

Best regards,
Tonny Vanmunster
CBA Belgium Observatory

> -----Original Message-----
> From: owner-vsnet-alert@kusastro.kyoto-u.ac.jp
> [mailto:owner-vsnet-alert@kusastro.kyoto-u.ac.jp]On Behalf Of Taichi
> Kato
> Sent: zondag 9 januari 2000 14:11
> To: vsnet-alert@kusastro.kyoto-u.ac.jp
> Subject: [vsnet-alert 3988] QY Per light curve update and more info
> 
> 
> QY Per light curve update and more info
> 
> Dear Colleagues,
> 
>    New data have arrived from Lasse Teist Jensen.  We have also added
> newly reduced Kyoto data.  It has become evident the data on last night
> still showed superhumps, but with a reduced amplitude.  The latest
> observation by Jensen indicates the object has not entered the rapid
> decline stage at least until Jan. 8 20h UT.  The number of points
> used to draw the light curve is 11027.
> 
>    http://vsnet.kusastro.kyoto-u.ac.jp/vsnet/DNe/qyper.html
> 
> Regards,
> Taichi Kato, Makoto Uemura, Gianluca Masi, Lew Cook, Katsura Matsumoto,
> Lasse Teist Jensen, Alessia Cassetti, Brian Martin, Tonny Vanmuster,
> Denis Buczynski :
> The VSNET QY Per collaboration team
>

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