[vsnet-alert 15889] SDSS J204720.76+000007.7 outburst

[Taichi Kato]

SDSS J204720.76+000007.7 outburst

> SDSSJ204720.76+000007.7 311.83705	0.00163	     6474	15.77

   This object is usually at g=19.4 (SDSS).
The present outburst is the brightest recorded one.
The SDSS spectrum is that of a dwarf nova, with slightly strong
He II emission (+ROSAT X-ray detection).

   According to the following page, a period is shown
(I'm not sure it's the orbital period)
http://shrike.pha.jhu.edu/stripe82-variables/lc-data/var-lcs/lightcurve-info-UID108580-2047+0000.html#diff_lct

   According to PASJ 64, 62, the SDSS colors suggest an object
below the period gap.