[IAUC] CBET 2595: 20101219 : APPARENT NOVA IN M33: M33N 2010-12a

Mie Sep 14 16:19:17 ART 2011

                                                  Electronic Telegram No. 2595
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


APPARENT NOVA IN M33:  M33N 2010-12a
     T. Yusa, Osaki, Miyagi, Japan, reports his discovery of an apparent nova
(mag 16.6) in M33 on twelve 90-s unfiltered CCD frames (limiting mag 18.5)
taken around Dec. 17.421 UT using a 30-m f/7 Cassegrain telescope (+ SBIG
STL-1001E camera).  The new object is located at R.A. = 1h34m17s.98 +/- 0s.03,
Decl. = +30d43'58'.3 +/- 0".3 (equinox 2000.0; star catalogue UCAC-3), which
is 350" east and 261" north of the center of the galaxy M33.  Additional
unfiltered CCD magnitudes by Yusa for M33N 2010-12a:  1991 Oct. 6, [20
(Digitized Sky Survey); 2010 Dec. 8.425, [18.5; 10.448, [18.5; 18.48, 17.5.
Yusa's discovery image has been posted at the following website URL:
http://space.geocities.jp/yusastar77/PNinM33_101217.htm.  Other confirming
reports of M33N 2010-12a by observers using unfiltered CCD cameras are given
below:

  Date UT          R.A. (2000.0) Decl.       Mag.    Observer
  Dec. 17.645    1 34 18.01  +30 43 58.0     16.4    Itagaki
       17.647    1 34 18.03  +30 43 58.3     16.7    Kadota
       18.357    1 34 18.01  +30 43 58.2     17.7    Itagaki
       18.486    1 34 18.02  +30 43 58.1     17.2    Nishiyama

K. Itagaki, Teppo-cho, Yamagata, Japan.  0.30-m f/7.8 reflector  (+ Bitran
 BT-214E camera) at Tochigi station; limiting mag 19.0.  Position on Dec. 18
 measured by H. Kaneda, Sapporo.  Communicated by S. Nakano, Sumoto, Japan.
K. Kadota, Ageo, Saitama-ken, Japan.  0.25-m f/5 reflector (+ SBIG ST-9E
 camera); limiting mag 18.0.  Communicated by S. Nakano.
K. Nishiyama, Kurume, Japan; and F. Kabashima, Miyaki, Japan.  Meade 200R
 0.40-m f/9.8 reflector (+ SBIG STL1001E camera); limiting magnitude 18.6.


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      superseded by text appearing later in the printed IAU Circulars.

                         (C) Copyright 2010 CBAT
2010 December 19                 (CBET 2595)              Daniel W. E. Green