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THE ASTRONOMER Electronic Circular No 3073      2015 Apr 22 19.19UT
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 2015H IN NGC 3464 
S. Parker, Canterbury, New Zealand, reports the discovery of an apparent
supernova (red mag 16.9) on a 30-s unfiltered CCD image (limiting mag 19)
taken on 2015 Feb. 10.54UT with a 0.35-m Celestron C14 reflector (+ ST10
camera) at his Parkdale Observatory in the course of the Backyard
Observatory Supernova Search. The new object is located at:
RA 10h 54m 42.16s DEC -21 04' 13.8" (2000), which is 30" east and 14" south
of the nucleus of the galaxy NGC 3464.  Nothing is visible at this position
on Digitised Sky Survey red and infrared images (limiting red magnitude >
19).  An image of the variable can be viewed via website URL
http://tinyurl.com/q9n8jyw. The type-I supernovae 2002J and 2002hy also
appeared in NGC 3464.  

P. Zelaya-Garcia, Pontificia Universidad Catolica de Chile et. al. on behalf
of the "Public European Southern Observatory Spectroscopic Survey for
Transient Objects" collaboration report that an optical spectrogram obtained
on Feb. 11 UT at the ESO 3.6-m New Technology Telescope (+ EFOSC2 Grism 13;
range 398.5-931.5 nm; 1.8-nm resolution) at La Silla, shows it to be a
peculiar type-Ia supernova.  The best matches to this spectrum, as found via
the "Supernova Identification" code are with post-maximum spectra of SNe
2002cx and 2005cc.
CBET 4093 issued April 16

Guy M Hurst