[IAUC] IAUC 9061: V5583 Sgr = N Sgr 2009 No. 3 [25139-2009/08-R1]

Mar Ago 18 00:08:47 ART 2009

                                                  Circular No. 9061
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
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V5583 SAGITTARII = NOVA SAGITTARII 2009 No. 3
     K. Nishiyama, Kurume, Fukuoka-ken, Japan; and F. Kabashima,
Miyaki-cho, Saga-ken, Japan, reported their discovery of a possible
nova (mag 7.7) on two 60-s unfiltered CCD frames (limiting
magnitude 13.3) taken on Aug. 6.494 and 6.495 UT using a 105-mm f/4
lens; their confirming frames taken around Aug. 6.494 with a 0.40-m
reflector yield a position R.A. = 18h07m07s.67, Decl. =
-33o46'33".9 (equinox 2000.0).  Their survey frames on July 22.531
and 29.584 showed nothing at this position (limiting magnitude 12.7),
and nothing is visible on Digitized Sky Survey images.  Additional
CCD magnitudes for the nova:  Aug. 6.182, V = 7.78 (G. Pojmanski,
D. Szczygiel, and B. Pilecki, Warsaw University Astronomical
Observatory, ASAS3V instrument of the All Sky Automated Survey;
independent discovery; position end figures 08s, 46'.6); 7.57, V =
7.43, B-V = +0.60, V-R_c = +0.48, V-I_c = +0.99 (H. Maehara, Kwasan
Observatory, Kyoto University; and Y. Sakane and H. Yamaoka, Kyushu
University; 25-cm telescope; position end figures 07s.71, 34".1);
7.579, 8.3 (L. Elenin, Moscow, Russia, remotely using a Takahashi
Epsilon 180 telescope located at Pingelly, Australia; position end
figures 07s.67, 34".9); 8.122, I_c = 6.52 (S. Kiyota, Ibaraki,
Japan, 30-cm GRAS telescope near Mayhill, NM, U.S.A.); 8.130, V =
7.68 (Kiyota); 8.131, R_c = 7.41 (Kiyota); 8.133, B = 8.07 (Kiyota).
Spectroscopy by M. Fujii (Fujii Bisei Observatory, Okayama, Japan;
communicated Maehara) on Aug. 7.60 shows the Balmer series
(H_alpha, H_beta, and H_gamma) and Fe II emission lines; the FWHM
of the H-alpha emission is 2300 km/s.  Spectroscopy by A. Arai, T.
Komatsu, M. Yamanaka, M. Sasada, and R. Itoh (Higashi-Hiroshima
Observatory, Hiroshima University) with the 1.5-m KANATA telescope
on Aug. 7.63 shows the Balmer lines (H_alpha and H_beta) and Fe II
emission lines, with H_alpha showing an asymmetric profile (its
FWHM being about 2100 km/s).  Additional details were published on
CBETs 1899 and 1900.
     E. Kazarovets, Moscow, reports that the GCVS team has assigned
the designation V5583 Sgr to this nova.  Additional visual
magnitude estimates, provided in part by E. O. Waagen, AAVSO:  Aug.
8.367, 7.8 (Y. Kok, Stanmore, NSW, Australia); 8.388, 7.6 (H.
Matsuyama, Kanimbla, Queensland, Australia); 8.497, 7.9 (Maysuyama);
8.553, 8.2 (Kok); 9.06, 8.2 (J. G. de S. Aguiar, Campinas, Brazil);
9.93, 8.5 (Aguiar); 10.93, 8.8 (Aguiar); 11.92, 8.9 (Aguiar); 12.92,
9.1 (Aguiar); 13.92, 9.2 (Aguiar); 14.083, 9.4 (W. Souza, Sao Paulo,
Brazil); 14.93, 9.5 (Aguiar); 15.083, 9.9 (Souza); 15.99, 9.8
(Aguiar); 16.104, 9.6 (Souza); 17.125, 9.9 (Souza).

                      (C) Copyright 2009 CBAT
2009 August 17                 (9061)            Daniel W. E. Green