[vsnet-alert 17136] SDSS J101323.64+455858.9 bright outburst

[Denis Denisenko]

MASTER-Amur robotic telescope has detected an outburst of this dwarf
nova in Ursa Major on the unfiltered 60-sec survey images from the
last night:

SDSS J101323.64+455858.9
  20140401.4851  14.68C  MASTER-Amur
  20140401.4863  14.68C  MASTER-Amur
  20140401.4874  14.67C  MASTER-Amur
  20140401.5166  14.63C  MASTER-Amur
  20140401.5177  14.60C  MASTER-Amur
  20140401.5189  14.56C  MASTER-Amur
Internal photometric errors are 0.02m.

Variability range in AAVSO VSX is 14.7-20 CV. Current outburst is
likely a superoutburst.

Light curve from Catalina Sky Survey:
http://nesssi.cacr.caltech.edu/catalina/20010319/103191460394100331p.html
(latest observation at 19.0m on 2014-03-11)

SDSS magnitudes, image and spectrum:
http://skyserver.sdss3.org/dr8/en/tools/explore/obj.asp?id=1237657874870632456
u=18.47 g=18.82 r=18.88 i=18.70 z=18.42
Estimated period from T. Kato et al., 2012 is 0.086d (96.6%
probability of SU UMa type).

IDs from other catalogs:
USNO-A2.0 1350-07734381 (10 13 23.63 +45 58 59.3 B=18.5 R=18.6)
USNO-B1.0 1359-0212998 (10 13 23.632 +45 58 59.30 B1=18.41 R1=19.08
B2=20.68 R2=N/A I=18.62)
GALEX J101323.6+455859 (FUV=20.34+/-0.15 NUV=19.64+/-0.07)
GALEX J101323.6+455858 (FUV=20.24+/-0.16 NUV=19.77+/-0.06)

Denis Denisenko
Member of MASTER team at SAI MSU