[vsnet-alert 11766] OT_J225749.6-082228 (Itagaki)

Taichi Kato tkato at kusastro.kyoto-u.ac.jp
Sun Jan 10 10:56:33 JST 2010

   Until the nature of the object becomes clear, use the designation
OT_J225749.6-082228 for reporting.  The object is a very good target
for time-series photometry.

OT_J225749.6-082228 20100109.430 130C KIt


Subject: [vsnet-outburst 10891] possible outburst of SDSS
        J225749.54-082228.7: new CV or nova?

Hi all,

  I have submitted the report below to the CBAT.

  Itagaki-san reported his detection of an apparent new stellar object 
(unfiltered mag 13.0) on Jan. 9.430 UT.  He reported the position as
R.A. = 22h57m49s.57, Decl. = -08d22'27".9.  It should be an outburst
of a star SDSS J225749.54-082228.7, which is tabled in some catalogs
(USNO A2.0, USNO B1.0, GSC 2.3 and so on) as a star with mag about 20.
Like as KT Eri, the amplitude of seven magnitudes is rather large for
a dwarf nova, but somewhat small for a rapid classical nova.

Hitoshi Yamaoka, Kyushu Univ., Japan
yamaoka at phys.kyushu-u.ac.jp <- changed!

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