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THE ASTRONOMER Electronic Circular No 3176      2016 Jun 12 12.14UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK      Backup: gmh@wdcc1.bnsc.rl.ac.uk
WORLD WIDE WEB                         http://www.theastronomer.org
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POSSIBLE NOVA IN SCORPIUS PNV J17381927-3725077

According to CBAT "Transient Objects Confirmation Page", Hideo Nishimura,
Shizuoka-ken, Japan reports discovery of an eruptive object (PNV
J17381927-3725077) on 2016 June 10.63UT at magnitude 12.4 using a 200-m
f/3.2 lens + Canon digital camera EOS 5D and CCD.

It is located at:
RA 17h 38m 19.27s DEC -37 25' 07.7" (2000)

Nothing was visible at this location on an image of 2016 May 14.71UT, May
18.61UT or June 5.53UT to a limiting magnitude of 13.0.

Two USNO-B1.0 stars (both about 17 mag) are within 1" of the transient's
position.

A mag 11.8, pre-discovery image has been found by T. Kojima, Gunma-ken,
Japan, on three frames using 135-mm lens + Canon EOS 6D digital camera, who
also advise nothing was visible at this location on two patrol frames
(Limiting mag.= 13) taken on 2016 June 5.582 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.

We have not so far received any CBET announcement on this object.

Guy M Hurst