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THE ASTRONOMER Electronic Circular No 2614      2010 Jan 10 10.17UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK      Backup: gmh@wdcc1.bnsc.rl.ac.uk
WORLD WIDE WEB                         http://www.theastronomer.org
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OT_J225749.6-082228
Hitoshi Yamaoka, Kyushu University, Japan advises us that Itagaki-san, 
Japan has reported his detection of an apparent eruptive object of 
magnitude 13.0 (unfiltered) on 2010 Jan. 9.430 UT.  He reported the 
position as:

RA 22h 57m 49.57s DEC -08 22' 27.9" (2000).

This may be an outburst of a star SDSS J225749.54-082228.7, which is 
listed in some catalogues (USNO A2.0, USNO B1.0, GSC 2.3 and others) as 
a star of magnitude about 20. Like as KT Eri (=Nova Eri 2009), the 
amplitude of seven magnitudes is rather large for a dwarf nova, but 
somewhat small for a rapid classical nova.

In a later message Yamaoka reports the object was fainter than 14.2 and 
not recorded on Jan 2.456UT. On Jan 10.366, it was 13.0 (unfiltered).

Guy M Hurst