AAVSO Special Notice #218
Outburst of the UGWZ star SDSS J080434.20+510349.2
September 21, 2010: As announced by Hiroyuki Maehara in vsnet-outburst 11547, the WZ Sge-type dwarf nova SDSS J080434.20+510349.2 is in outburst, and is also showing evidence of superhumps (vsnet-outburst 11551). Both visual and CCD observations -- including CCD time-series observations -- of this outburst are encouraged. The most recently posted visual observation by Patrick Schmeer (vsnet-outburst 11556) indicates the star is currently around m(vis) = 12.7.
This object is close to the Sun, with optimal viewing times being the pre-dawn hours. Please obtain a S/N of at least 20 per observation if possible, with higher S/N encouraged if exposure times can be kept shorter than a few minutes.
SDSS J080434.20+510349.2 is located at the following (J2000) coordinates:
RA: 08 04 34.20 , Dec: +51 03 49.2
Charts for SDSS J080434.20+510349.2 may be plotted using AAVSO's VSP:
Please promptly submit all observations to the AAVSO using the name
This AAVSO Special Notice was prepared by M. Templeton.
SUBMIT OBSERVATIONS TO THE AAVSO
Information on submitting observations to the AAVSO may be found at:
SPECIAL NOTICE ARCHIVE AND SUBSCRIPTION INFORMATION
A Special Notice archive is available at the following URL:
Subscribing and Unsubscribing may be done at the following URL:
Last Updated: September 21, 2010 - 10:03am