[vsnet-campaign-dn 4589] Superhumps in SDSSJ155644.24-000950.2

[Hiroyuki Maehara]

Dear colleagues,

I performed time-series photometry of SDSSJ155644.24-000950.2
last night. The data show superhumps with an amplitude of 0.15 mag.
The period of superhump is around 0.08 days.
Light curve of superhumps can be seen at
http://www.cetus-net.org/ftp/light_curves/sdssj1556-20060304.png

The data by ASAS-3 show the current outburst occurred between
JD 2453773 and 2453789.
http://www.astrouw.edu.pl/cgi-asas/asas_cgi_get_data?155644-0009.9,asas3

The data on Mar. 4 show the decline trend at a rate of 0.8 mag/day
 suggesting that the object entered rapid fading stage.
Follow-up observations are encouraged.

Best regards,
Hiroyuki Maehara
VSNET Collaboration Team