[IAUC] CBET 1679: 20090203 : SUPERNOVA 2009U IN NGC 3831

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                                                  Electronic Telegram No. 1679
Central Bureau for Astronomical Telegrams
INTERNATIONAL ASTRONOMICAL UNION
M.S. 18, Smithsonian Astrophysical Observatory, Cambridge, MA 02138, U.S.A.
IAUSUBS en CFA.HARVARD.EDU or FAX 617-495-7231 (subscriptions)
CBAT en CFA.HARVARD.EDU (science)
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SUPERNOVA 2009U IN NGC 3831
     G. Pignata, J. Maza, M. Hamuy, R. Antezana, L. Gonzalez, P. Gonzalez, P.
Lopez, S. Silva, G. Folatelli, D. Iturra, R. Cartier, F. Forster, and S.
Marchi, Universidad de Chile; B. Conuel, Wesleyan University; and D.
Reichart, K. Ivarsen, A. Crain, D. Foster, M. Nysewander, and A. LaCluyze,
University of North Carolina at Chapel Hill, on behalf of the CHASE project,
report the discovery of an apparent supernova (mag approximately 15.8 +/- 0.1)
on an unfiltered image taken on Feb. 2.18 UT with the 0.41-m 'PROMPT 3'
telescope located at Cerro Tololo.  The new object, which is also present at
mag approximately 16.1 +/- 0.2 in an image taken on Feb. 3.14, is located at
R.A. = 11h43m18s.72 +/- 0".1, Decl. = -12o52'46".1 +/- 0".1 (equinox 2000),
which is about 2".0 east and 4".3 south of the center of the galaxy NGC 3831.
Nothing is visible at this position on archival images taken on Jan. 18.22
(limiting mag 18) and 22.22 (limiting mag 18.5).


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                         (C) Copyright 2009 CBAT
2009 February 3                  (CBET 1679)              Daniel W. E. Green