[vsnet-newvar 2667] OT_J124417.9+300401

[Hiroyuki Maehara]

The following Catalina transient has two blue counterparts in SDSS catalog.

804271290604119048 2008-04-27T08:29:16 2008-04-27T08:23:49 12 44 17.88 +30 04 01.2 4.320 16.01 16.06 16.02 15.99 http://nesssi.cacr.caltech.edu/catalina/20080427/804271290604119048.html

SDSS J124417.89+300401.0 12 44 17.89 +30 04 01.0 u=18.584 g=18.613 r=18.504 i=18.399 z=18.133
SDSS J124417.89+300400.9 12 44 17.89 +30 04 00.9 u=19.355 g=19.578 r=19.501 i=19.486 z=19.065

The Catalina Sky Survey detected another outburst on Mar. 26 2007.
http://nesssi.cacr.caltech.edu/catalina/20080427/804271290604119048.html#table1

The SDSS spectrum of SDSS J124417.89+300401.0 shows a blue continuum 
and Balmer series and HeI emission lines.
http://cas.sdss.org/astro/en/get/specById.asp?id=629890714750156800

The object is a dwarf nova.