Electronic Telegram No. 1900
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS@CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT@CFA.HARVARD.EDU (science)
URL http://www.cfa.harvard.edu/iau/cbat.html


NOVA SAGITTARII 2009 No. 3
     L. Elenin, Moscow, Russia, reports that his images, obtained remotely
at the Tzec Maun Observatory at Pingelly, Australia, on Aug. 7.579 UT with a T
akahashi Epsilon 180 telescope (+ ST2000C camera with a (blue-sensitive color
chip), yields mag 8.3 for the nova (cf. CBET 1899) and position
R.A. = 18h07m07s.67, Decl. = -33d46'34".9 (equinox 2000.0; rms about 0".14,
measured with Astrometrica software).
     H. Maehara, Kwasan Observatory, Kyoto University, reports that M.
Fujii (Fujii Bisei Observatory, Okayama, Japan) obtained a spectrum of the
nova on Aug. 7.60 UT.  The spectrum 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.
     Maehara adds that A. Arai, T. Komatsu, M. Yamanaka, M. Sasada, and R.
Itoh (Higashi-Hiroshima Observatory, Hiroshima University) obtained a
spectrogram of the nova with the High Speed Spectrograph attached to the
1.5-m KANATA telescope on Aug. 7.63 UT; the Balmer lines (H-alpha and
H-beta) and Fe II emission lines are seen in their spectrum.  H-alpha
emission line shows an asymmetric profile; the FWHM of the H-alpha
emission line is about 2100 km/s.  Their spectrum can be found at
http://kanatatmp.g.hatena.ne.jp/kanataobslog/20090807.  Maehara notes
that these observations confirm that the object is a nova.
     H. Maehara, Kwasan Observatory, Kyoto University; and Y. Sakane and
H. Yamaoka, Kyushu University, write that images obtained with a 25-cm
telescope of the Kwasan Observatory on Aug. 7.57 UT yield position end f
igures 07s.71, 34".1 (UCAC2 catalogue for reference stars) and the
following magnitude and colors:  V = 7.43, B-V = +0.60, V-R_c = +0.48,
V-I_c = +0.99.  S. Kiyota (Ibaraki, Japan) reports that images taken with
the 30-cm telescope of the GRAS (global-rent-a-scope) at New Mexico
on Aug. 8.122-8.133 UT yields following magnitudes:  Aug. 8.122, I_c =
6.52; 8.130, V = 7.68; 8.131, R_c = 7.41; 8.133, B = 8.07.


NOTE: These 'Central Bureau Electronic Telegrams' are sometimes
      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2009 CBAT
2009 August 8                    (CBET 1900)              Daniel W. E. Green