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THE ASTRONOMER Electronic Circular No 2520      2009 Jan 23 08.13UT
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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SUPERNOVA 2009M IN NGC 1028
On 2009 January 20 an e-mail was received from Ron Arbour reporting his 
discovery of an apparent supernova of magnitude 17.6 (unfiltered) in NGC 
1028 during the course of searches for the UK Nova/Supernova Patrol. The 
detection was made on an unfiltered CCD image taken on 2009 Jan 
20.8819UT using a 0.4-m f/5 Newtonian and Starlight Xpress CCD camera. 
The object was also recorded on several subsequent images to a limiting 
unfiltered magnitude of approx. 18.6.

Ron derived the following precise position:
RA 02h 39m 36.48s DEC +10 50' 27.9" (2000), offsets 10.6"W 9.4"S

The object was not visible on the Digitised Sky Survey POSS II Blue
plate of 1992-10-02 or the POSS II Red plate of 1990-10-24 and was not 
listed on CBAT's Minor Planet Checker.

In response to an appeal from TA, a colleague confirmed the object
using a remote robotic telescope and derived a position of:
RA 02h 39m 36.46s DEC +10 50' 27.3" (20000; UCAC-2 catalogue reference 
stars).

The Central Bureau appeal also resulted in confirmation from Russia and 
an announcement was made on CBET 1669 designating it as Supernova 2009M.

T. Kryachko, Kazan State University (KSU); and S. Korotkiy, Moscow, 
report that a 300-s V-band CCD image obtained on Jan. 21.646UT with a 
Takahashi FRC-300 telescope (+ Apogee Alta U9000 camera) at the
KSU Astrotel Observatory shows 2009M at mag 17.5 and position end
figures 36s.57, 27".4 (offset about 8".8 west and 10".0 south); they add 
that nothing is visible at this position on a Palomar Sky Survey plate 
obtained on 1990 Oct. 24 (via the Digitised Sky Survey; limiting red mag 
20.5), and they have posted an
image of 2009M at URL http://www.astroalert.su/files/ngc1028psn.jpg

Congratulations to Ron on the discovery of his 20th supernova.

Guy M Hurst