Discoverer: Hideo Nishimura (Shizuoka-ken, Japan)
R.A. 17h38m19.27s Decl. -37°25'07.7" (J2000.0)
2016 June 10.629 UT, 12.4 mag (CCD, unfiltered)
"2016 06 10.629 UT
Discovered by H. Nishimura, Shizuoka-ken, Japan using 200-mm f/3.2 lens + a Canon digital camera EOS 5D, who writes nothing is visible at this location on his recent frames taken on 2016 May 14.712, May 18.602 and June 5.532 (Limiting mag = about 13.0) UT using same patrol camera."
Two USNO-B1.0 stars (both about 17 mag) are within 1" of the transient's position.
Spectroscopy, precise astrometry, and time-resolved photometry are required.
I got PNV J17381927-3725077 at 12.2 vis at 16:18 11/06 UT. A 3 degree chart plotted on the co-ords gets a sequence. Very difficult because a long way from the transient field.
PNV J17381927-3725077 spectroscopically confirmed
(= "Nova Scorpii 2016")
2016 06 11.65 UT
K. Ayani, Bisei Astronomical Observatory (BAO) obtained a low-dispersion spectrogram (resolution 0.5 nm, range 400-800 nm) of this PNV with the BAO 1.01-m telescope. It has a prominent and broad H-alpha emission line (FWHM about 1800 km/s, equivalent width about 23 nm) and a broad H-beta emission line, which shows that the PNV is a nova in early phase. The spectrum ... is posted at