[vsnet-alert 22304] TCP J18010186-2951258: possible nova (10.8 mag) in Sagittarius

Sat Jul 14 00:50:11 JST 2018

TCP J18010186-2951258  (N:)

Discovery details:
R.A. 18h01m01.86s, Decl. -29°51'25.8" (J2000.0)
2018 July 13.4938 UT, 10.8 mag (unfiltered)
Discoverer: Tadashi Kojima (Gunma-ken, Japan)

2018 07 13.494 UT
Discovered by T. Kojima, Gunma-ken, Japan, who found this on
six frames (limiting mag. = 13.3) taken by Canon EOS 6D +
200-mm f/3.2 lens. Nothing is visible at this location on a
frame taken on 2018 July 2.522. There is a star (mag.= 15.0)
at 01s.98 and 23".7 on USNO-A2.

2018 07 13.63 UT
Crowded field. The current brightening was first detected by
the ASAS-SN Sky Patrol (Shappee et al. 2014ApJ...788...48S and
Kochanek et al. 2017PASP..129j4502K) on 2018 July 4.169 UT at
Vmag. 13.9; the latest available observation is July 12.148 UT,
Vmag. 12.0. Light curve at
https://asas-sn.osu.edu/light_curves/7952b199-5c3b-4457-a470-6d9379f9e85f
--- Patrick Schmeer (Saarbrücken-Bischmisheim, Germany)

http://www.cbat.eps.harvard.edu/unconf/followups/J18010186-2951258.html

Spectroscopy, precise astrometry, and multiband photometry are
urgently required.

Clear skies,
Patrick