[vsnet-alert 17801] SDSS J032015.29+441059.3 outburst

[Denis Denisenko]

This dwarf nova in Perseus identified by Patrick Wils et al. (MNRAS
Vol. 402, 1, pp. 436-446, 2010) is in outburst on MASTER-Amur images
obtained last night (Sep. 30) and a few hours ago.

SDSS J032015.29+441059.3
  20140930.493   154C   MASTER-Amur
  20140930.525   155C   MASTER-Amur
  20141001.521   156C   MASTER-Amur
  20141001.551   155C   MASTER-Amur

There were previous brighter outbursts in MASTER database 3 and 2 years ago:

  20110906.873  14.95C  MASTER-Tunka
  20120904.037  14.38C  MASTER-Kislovodsk
  20120904.058  14.58C  MASTER-Kislovodsk

Entries in catalogs:
SDSS J032015.29+441059.2 (u=18.45 g=18.77 r=18.45 i=18.21 z=18.05)
USNO-B1.0 1341-0070246 (03 20 15.276 +44 10 59.99 B1=19.35 R1=18.59
B2=18.70 R2=18.71 I=15.01)
The star was also found in my search for CVs with outbursts on
infrared Palomar plates (D. Denisenko, Astron. Lett., Vol. 38, pp.
249-259, 2012).

Orbital period is unknown. Taichi Kato et al. (PASJ Vol. 64, 3, 63,
2012) have estimated Porb=0.082d using SDSS colors.

Denis Denisenko
Member of MASTER team at SAI MSU