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THE ASTRONOMER Electronic Circular No 2364      2007 Aug 09 06.42UT
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 VULPECULA
S. Nakano, Japan, reports the discovery of a possible nova of magnitude 
9.5 detected by Hiroshi Abe (Yatsuka-cho, Matsue, Shimane-ken, Japan) on 
images secured with a Canon camera and 35mm f2.8 lens on 2007 August 
8.54UT.

Nakano has obtained the following precise position:
RA 19h 54m 24.3s DEC +20 52' 47" (2000)

K. Kadota advises end figures obtained from an exposure of Aug 8.682:
RA 24.64s DEC 51.9" (2000)
and notes a nearby magnitude 11.8 has end figures of RA 23.95s DEC 
30.3". He further notes that a star of red mag 18.1 and blue mag 17.6 in 
the USNO-A2.0 catalogue has position end figures 24.66s, 51.7".

David Branchett, Florida, USA e-mails that he has obtained a 
confirmatory visual observation on 2007 August 9 (01h08mUT) of magnitude 
9.0.

Richard Miles advises that under good skies, he obtained two 50 x 4 sec 
V frames and 40 x 10sec I frames with resultant photometry on TYC stars:

1628-1075  V=8.826 +/- 0.023,  V-I=+1.40
1628-0666  V=9.802 +/- 0.013,  V-I=+1.18
1628-0130  V=9.496 +/- 0.012,  V-I=+0.48
1628-0527  V=10.244 +/- 0.013,  V-I=+0.24
1628-1171  V=10.147 +/- 0.021,  V-I=+0.14

Errors quoted in V are absolute.
Uncertainty in V-I mags ia about +/-0.03

Measures on the candidate nova gave:
2007 August 08 23:20UT Nova Vul  V=8.930 +/- 0.012
2007 August 08 23:37UT Nova Vul  V=8.910 +/- 0.012

Photometry was performed relative to Hipparcos stars:
97753, 97863, 97889, 97876, 97879, 98169

Guy M Hurst