Central Bureau for Astronomical Telegrams

CBAT "Transient Object Followup Reports"

PNV J18580379+1701265

PNV J18580379+1701265   2017 01 20.857 *  18 58 03.79 +17 01 26.5  12.1 U             Aql       9 0

2017 01 20.857

Discovered by H. Nishimura, Shizuoka-ken, Japan, on three 13-s frames using 200-mm f/3.2 lens + a Canon digital camera, who writes nothing is visible at this location on his recent frame taken on 2017 Jan. 17.860 UT, An image at http://www.oaa.gr.jp/~oaacs/image/PNinAql.jpg.

2017 01 21.249

Visual magnitude estimate: 2017 Jan. 21.249 UT, 12.2 (203-mm Schmidt-Cassegrain telescope) --- Patrick Schmeer (Bischmisheim, Germany)

2017 01 21.28

The bright (FUV= 12.65, NUV= 12.43 mag -> Previous outburst? Dwarf nova??) UV source GALEX J185803.7+170125 is only 1.4" from the transient's reported position. This UV source is probably identical with USNO-B1.0 1070-0419935 (18 mag). --- Patrick Schmeer (Bischmisheim, Germany)

2017 01 21.867

Mag.= 13.2, position end figures 03s.64, 27".0 observed by T. Noguchi, Chiba-ken, Japan, using 0.23-m f/6.3 Schmidt Cassegrain + unfiltered CCD, who put an image at http://park8.wakwak.com/~ngc/images/PNVinAql_20170121.jpg.

2017 01 22.8581

Photometry results were V=12.77, Rc=12.65 and Ic=12.96 with 0.25m SCT + Apogee Alta F47 CCD. Rc color was slightly brighter than V and Ic but it might be due to high air mass. Seiichiro Kiyota (Kamagaya, Japan)