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THE ASTRONOMER Electronic Circular No 2942      2013 Aug 15 08.01UT
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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NOVA DELPHINI 2013
Koichi Itagaki, Japan reports discovery of an apparent nova (mag 6.8) on an
unfiltered CCD frame of 2013 Aug. 14.58UT using a 0.18-m reflector. It was
confirmed with a 0.60-m f/5.7 reflector on Aug. 14.75 showing a brightening
to mag 6.3.  It is located at:
RA 20h 23m 30.73s DEC +20 46' 04.1" (2000).
Itagaki posted his discovery image at:
http://www.k-itagaki.jp/images/pnv-del.jpg

Additional CCD magnitudes (unfiltered unless noted otherwise):
2013 May 13.99, 17.1 (D. Denisenko et. al. 0.40-m f/2.5 robotic
MASTER-Kislovodsk reflector; limiting mag 18.9); Aug 14.8, 6.8 (Ernesto
Guido et. al. 0.43-m f/6.8 astrograph, Spain; position end figures 30s.72,
03".4); 14.81, V = 6.2 (Wolfgang Vollmann, Vienna)

Visual magnitude estimates Aug. 14.82UT, 6.2 (M. Reszelski, Poland, 15x70
binoculars); 14.915, 6.3 (E. Broens, Belgium); 15.03, 6.0 (Gustav Holmberg,
Sweden).

Denisenko et al. suggest that the variable is identical to the blue star
USNO-B1.0 1107-0509795 (position end figures 30s.713, 03".97; blue mag 17.2-
17.4, red mag 17.4-17.7).

Strong H-alpha emission has been noted by Masi et al. (low-resolution
spectra taken with a 36-cm robotic telescope at Ceccano; scale about 3.4
nm/pixel; Aug. 14.92 UT) and by Olivier Garde (Observatoire de la Tourbiere,
France; C14 telescope; resolution 10000; echelle spectrograph). 

Guy M Hurst