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THE ASTRONOMER Electronic Circular No 3111      2015 Oct 01 20.25UT
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 SAGITTARII 2015 No. 3
K. Itagaki, Japan reports discovery of an apparent magnitude 9.9 nova on an
unfiltered CCD frame taken on 2015 Sept. 27.42UT using a 180-mm-focal-length
camera lens; unfiltered confirming CCD images taken by Itagaki at the same
time with a 0.50-m f/6 reflector yield the following position:
RA 18h03m32s.75  DEC -28d16'05".4 (2000) The discovery image was posted at
URL http://www.k-itagaki.jp/images/pn-sgr.jpg
The variable was designated PNV J18033275-2816054 when it was initially
posted at the Central Bureau's TOCP webpage.

Additional CCD magnitudes for the variable:  Sep 27.40, 9.5 (T. Kojima,
Japan; pre-discovery image, Canon EOS 60 camera + 135-mm-f.l. f/2.8 lens +
infrared filter);. 27.418, 9.7 (Y. Sakurai, Japan; pre-discovery image;
Nikon D7100 + 180-mm-f.l. f/2.8 lens; communicated by Nakano)

Yamaoka adds that Y. Nakamura also reported an independent discovery of this
variable on CCD images taken on Sept. 27.419 with a 135-mm-f.l. camera lens
(no magnitude or position provided).

Visual magnitude estimates: Sept. 27.50 UT, 10.2 (P. Camilleri, NSW,
Australia; 28.038, 9.7 (John Bortle, Stormville, NY)

K. Ayani, Bisei Astronomical Observatory, reports that a spectrogram taken
by M. Fujii (Kurashiki, Okayama, Japan) with a 0.4-m telescope on Sept.
27.487 UT shows Balmer emission lines, with the H-beta line having a P-Cyg
profile that indicates an expansion velocity of about 1100 km/s.  Emission
lines of Fe II (37), (42), and (49) also have P-Cyg profiles.  The Na D
absorption is remarkable.

O. Garde, Chabons, France, writes that he obtained nine 600-s echelle
spectrograms (resolution R = 11000) of PNV J18033275-2816054 with a 40-cm
Ritchey-Chretien telescope (+ ATIK 460EX CCD camera) on Sept. 29.768 UT.
H-alpha shows a P-Cyg profile with an indicated radial velocity of about 870
km/s.  The spectrogram can be viewed at the following website URL:
http://www.spectro-aras.com/forum/viewtopic.php?f=5&t=1264.

CBET 4145 issued 2015 Sept 30

Guy M Hurst