[vsnet-alert 13693] Unknown type variable star in Perseus = TCP J04283707+3157578

[Korotkiy Stas]

Unknown type variable star in Perseus discovered by Timur Kryachko and Boris Satovski on images, obtained on 2011 Sep 22.01161UT using 0.30-m f/8 reflector + unfiltered CCD (Alta 16Mpix) under the limiting magnitude = 20.5R at Astrotel Observatory, (Zelenchukskaya Sta., Russia, MPC COD: 114). 
Mag=16.9C, astrometry: RA=04 28 37.07; DEC=+31 57 57.8 (+-0.1") .
Five images caught this object. Nothing is visible at this position on a Palomar Sky Survey DSS image obtained on 1989-11-24, 1996-11-04 and nothing is visible at 2MASS images obtained on 1999-11-26.
But at this position on a Palomar Sky Survey DSS image obtained on 1955-10-22 and 1992-10-01 visible object at 17 mag.
 Links to DSS and 2MASS images: http://goo.gl/rRV6n
 No object in: MPChecker, VSX AAVSO and SIMBAD.
 Kryachko image URL: http://www.astroalert.su/files/tcp_04283707_3157578_2011-09-22.jpg

 On CBAT "Transient Objects Confirmation Page": http://www.cbat.eps.harvard.edu/unconf/followups/J04283707+3157578.html