PNV J18205200-2822100 2016 10 26.3802* 18 20 52.00 -28 22 10.0 10.4 U Sgr 9 0
2016 10 26.380
Discovered on frames by Y. Sakurai, Mito, Japan, using Nikon D7100 digital camera + 180-mm f/2.8 lens. Nothing is visible at this location on two frames (limit mag.= 11.0) taken on 2016 Oct. 23.398 UT.
2016 10 25.02
This probable nova was already reported as ASASSN-16ma (R.A. 18h20m52.12s, Decl. -28°22'13.52", J2000.0) by Krzysztof Stanek et al. in ATel #9669 (issued on 26 Oct 2016 at 01:28 UT). Quote: "ASASSN-16ma was discovered in images obtained on 2016-10-25.02 at V~13.7 and proceed to brighten to V~11.6 a day later (UT 2016-10-26.02). We do not detect (V>17.3) the object in images taken on UT 2016-10-20.04 and before. No previous outbursts are detected at this location since ASAS-SN started observing the Galactic center in March 2016." Full text: http://www.astronomerstelegram.org/?read=9669 --- Patrick Schmeer (Bischmisheim, Germany)
2016 10 27.0474
Photometry results were B=11.04, V=10.65 and Ic=10.18 with 0.50-m f/4.5 CDK astrograph + FLI-PL11002M at Mayhill, NM, USA remotely. It might be classcal novae as it has low galactic coordinatesasnd red color. Seiichiro Kiyota (Kamagaya, Japan)
2016 10 27.49
In ATel #9678 Paul Luckas (International Centre for Radio Astronomy Research, Univ. of Western Australia; ARAS Group) reports his "Spectroscopic confirmation of ASASSN-16ma as a classical nova in the Fe-curtain stage": http://www.astronomerstelegram.org/?read=9678. Plot of this spectrum: http://www.astrosurf.com/aras/Aras_DataBase/Novae/2016_NovaSgr2016d.htm --- Patrick Schmeer (Bischmisheim, Germany)