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THE ASTRONOMER Electronic Circular No 2549      2009 May 15 19.00UT
Ed:Guy M Hurst, 16,Westminster Close, Kempshott Rise,  Basingstoke,
Hants, RG22 4PP,England.Telephone/FAX(01256)471074Int:+441256471074
INTERNET: GUY@TAHQ.DEMON.CO.UK      Backup: gmh@wdcc1.bnsc.rl.ac.uk
WORLD WIDE WEB                         http://www.theastronomer.org
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V1213 CENTAURI
Grzegorz Pojmanski, Dorota Szczygiel and Bogumil Pilecki of Warsaw
University Astronomical Observatory report: ASAS3V instrument of The All 
Sky Automated Survey (telephoto lens 200/2.8, diameter 70mm + CCD + 
Johnsons V  filter, 3 minute exposures, pixel size 14.8 arcsec, rms 
astrometric accuracy - 4  arcsec) has detected possible outburst of nova 
in Centaurus located at:
RA = 13h 31m 16s  DEC  -63d 57.6' (2000)
The object was V=8.53 at its maximum and is currently fading at the rate 
of 0.2 mag/day. Several faint sources are present close to this position 
in the DSS image and USNO-B catalog, so no progenitor could be suggested 
based on the ASAS astrometry.

Observations
     DATE      UT                       HJD      V
04/05/2009 04:01:20 (May 04.168) 2454955.6718 invisible
08/05/2009 05:38:14 (May 08.235) 2454959.7391 8.533
11/05/2009 02:34:38 (May 11.108) 2454962.6114 9.121
11/05/2009 03:21:22 (May 11.140) 2454962.6441 9.134
Images can be found on
http://www.astrouw.edu.pl/cgi-asas/asas_disc/133116-6357.6,4900

Ernesto Guido and Giovanni Sostero report to us that they obtained 
unfiltered CCD images remotely with a 0.25-m f/6 Ritchey-Chretien 
telescope at the RAS Observatory, Australia, on May 13.57 that yield 
magnitude about 8.6 for the variable and position end figures 15s.77, 
38".6.

A. Pigulski, Astronomical Institute, Wroclaw University, writes on IAUC 
9043 that he obtained a single spectrogram of the variable with the 
1.9-m Radcliffe telescope of the South African Astronomical Observatory 
on May 13.89 UT.  The star shows very strong and broad emission in 
H-alpha, H-beta, and H-gamma.  The peak flux of the H-alpha emission is 
roughly ten times stronger than that of the continuum.  The FWHM of the 
Balmer lines
(as measured from H-alpha and H-beta) corresponds to the velocity of 
2300 km/s.  In addition, the Fe II emission features at 490-540 nm, 
characteristic for a nova at an early stage of evolution, can be clearly 
seen in the spectrum.

E. V. Kazarovets and N. Samus report that the GCVS team assigns the 
designation V1213 Cen to this nova.

SUPERNOVA 2009da IN ANONYMOUS GALAXY
Discovery by the CHASE project of a possible supernova (CBET 1758):
SN      2009 UT      R.A.  (2000.0)  Decl.    Mag.     Offset
2009da  Apr.  7.40  21 42 07.20  +06 46 25.6  16.9    12.6"W, 4.2"N
J. Anderson and N. Morrell, on behalf of the Millenium Center for
Supernova Studies and the Carnegie Supernova Project collaboration, 
report that they obtained a spectrum on Apr. 17.4 UT showing it to be a 
type-Ia supernova, then 12-15 days past maximum light.

Guy M Hurst