[vsnet-alert 16491] ASASSN-13df

[Denis Denisenko]

Krzysztof Stanek <superasassn at gmail.com> wrote:

> Object      RA (J2000)    DEC (J2000)      Disc. Date     V mag
> -----------------------------------------------------------------------
> ASASSN-13df  17:22:35.85  18:05:12  2013-10-1.22  14.7
>
> ASASSN-13df is a new CV candidate, with an R=18.9 mag star at position
> also detected in Galex; nothing was detected on 2013/09/24 and
> earlier.

Previous outburst was observed by MASTER-Amur robotic telescope in
late October 2012 (but the object was then missed as a transient):

ASASSN-13df = GALEX J172235.8+180512
  20121029.408  14.35C  MASTER-Amur
  20121029.440  14.47C  MASTER-Amur

No previous outbursts were found in NEAT data (49 images obtained on
19 different nights from 1997 June 01 to 2005 Sep. 05).

Other IDs:
USNO A2.0 1050-08628468 17 22 35.87 +18 05 12.1 R=18.6 B=18.1
USNO-B1.0 1080-0315346 17 22 35.832 +18 05 11.97 B1=18.71 R1=18.85
B2=18.32 R2=18.86 I=18.62
GALEX J172235.8+180512 FUV=19.62+/-0.17 NUV=19.34+/-0.10

Nothing at this position in 1RXS.

Denis Denisenko