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THE ASTRONOMER Electronic Circular No 3058      2015 Feb 06 12.02UT
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 2015C IN IC 4221 (LOSS)
2015C   Jan 07.60   13 18 30.47  -14 36 44.6  16.4   1.6"E   12.5"S
The object was detected again on Jan. 11.54 UT at similar magnitude (16.4).
J. M. Silverman: spectrum Jan 15 with the robotic FLOYDS instrument mounted
on the Faulkes Telescope North, shows it is a type-II supernova. Correlation
with a library of spectra indicates that 2015C is a normal type-IIP
supernova at 1-2 months after explosion.  After removal of the host-galaxy
recession velocity of 2889 km/s, the absorption minimum of the H-alpha line
is found to be blueshifted by about 5900 km/s.
CBET 4049 issued January 23

SUPERNOVA 2015D IN NGC 5020 (z-W. JIN ET. AL.,CHINA)
2015D   Jan 18.90   13 12 41.16  +12 36 01.8  17.4  14.5"E    2.7"N  
Nothing is visible at this position on a red Digitised Sky Survey photograph
from 1997 May 7 (limiting mag about 19.8) or on Xingming archival images
taken on 2014 Dec.25 (limiting mag 19.5). 
The discoverers' images have been posted at website URL
http://www.xjltp.com/XOSS/XM51ZJ/XM51ZJ.htm
The type-II supernova 1991J also appeared in NGC 5020

K. Migotto: spectrum Jan 20 indicates a type-IIP around two weeks after
explosion.

Guy M Hurst