[vsnet-alert 11952] [FWD] possible new cataclysmic variable in Her

[Hitoshi Yamaoka]

Hi all,

  I have mailed the report attached below to the CBAT.
Confirmation/classification is urged.

Cheers,
Hitoshi Yamaoka, Kyushu Univ., Japan

>Date: Sun, 25 Apr 2010 12:13:04 +0900 (JST)
From: Hitoshi Yamaoka <yamaoka at ursa.phys.kyushu-u.ac.jp>
Subject: possible new cataclysmic variable in Her

  Itagaki-san noticed a possible new variable (mag 14.9) during his
survey.  A confirmation image taken on Apr. 24.706 UT with his 0.60-m
reflector yields the position of a new object as: R.A. = 18h21m42s.83,
Decl. = +21d21'53".8 (J2000.0).  It would be an outburst of a star
SDSS J182142.83+212153.5 (u=20.195, g=20.260, r=20.198, i=19.895,
z=19.438), which is also cataloged in the USNO-B1.0 and the GSC 2.3.
The amplitude suggests that it can be a new dwarf nova outburst.
Time-resolved photometry and/or spectroscopic classification is urged.