[IAUC] CBET 2533: 20101105 : NOVA IN M33: M33N 2010-10a

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                                                  Electronic Telegram No. 2533
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
CBAT Director:  Daniel W. E. Green; Hoffman Lab 209; Harvard University;
 20 Oxford St.; Cambridge, MA  02138; U.S.A.
e-mail:  cbatiau en eps.harvard.edu (alternate cbat en iau.org)
URL http://www.cbat.eps.harvard.edu/index.html
Prepared using the Tamkin Foundation Computer Network


NOVA IN M33:  M33N 2010-10a
     Koichi Nishiyama, Kurume, Japan; and Fujio Kabashima, Miyaki, Japan,
report the discovery of an apparent nova (mag 18.1) in M33 on seven 40-s
unfiltered CCD frames (limiting magnitude = 19.1) taken around Oct. 26.654
UT, using a Meade 200R 0.40-m f/9.8 reflector (+ SBIG STL1001E camera); they
measure the new star's position to be R.A. = 1h33m57s.12 +/- 0s.02, Decl. =
+30d45'53".2 +/- 0".4 (equinox 2000.0), which is 80" east and 377" north of
the center of the galaxy M33.  Additional magnitudes for the nova, designated
M33N 2010-10a (provided by Nishiyama and Kabashima unless noted otherwise):
1989 Dec. 4, [18.7 (Digitized Sky Survey; infrared plate); 1991 Oct. 5, [18.7
(DSS; red plate); 2010 Oct. 16.713, [19.0; 17.618, [18.8; 27.606, 17.7;
28.160, 18.5 (T. Yusa, Osaki, Japan); 29.605, 18.5; Nov. 1.606, 18.8.  Yusa's
unfiltered CCD images from Oct. 28 were taken remotely using a 0.25-m f/3.4
reflector at the GRAS Observatory near Mayhill, NM, U.S.A., following posting
on the Central Bureau's unconfirmed-objects webpage; he posted his image at
http://www.palette.furukawa.miyagi.jp/space/images/PNinM33_101028.jpg.

     A. W. Shafter, San Diego State University; M. J. Darnley and M. F. Bode,
John Moores University, Liverpool; R. Ciardullo, Pennsylvania State
University; and K. A. Misselt, University of Arizona, report that a spectrum
of M33N 2010-10a, obtained on 2010 Oct. 28.37 UT with the Low-Resolution
Spectrograph on the 9.2-m Hobby-Eberly Telescope, reveals broad Balmer
emission (FWHM about 4800 km/s), along with weaker emission features of
He I and Fe II superimposed on a flat continuum.  These observations confirm
that the object is a nova and that it is a member of the "Fe IIb" or "hybrid"
spectroscopic class.


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                         (C) Copyright 2010 CBAT
2010 November 5                  (CBET 2533)              Daniel W. E. Green