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THE ASTRONOMER Electronic Circular No 3100      2015 Aug 22 19.16UT
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 2015M (K. Itagaki)
2015M   May 13.51   13 00 32.30  +27 59 41.1 17.2  close to centre
Two additional independent discoveries were reported to the Bureau:
1) J R Lucy May 12 images University of Durhma
2) T Morouma et al. May 10 KISO survey
Nick James recorded it 2015 May 13.929 16.7

Paolo Mazzali et. al., Liverpool John Moores University and others
report that optical spectrograms on May 13 UT with the SPRAT instrument on
the Liverpool telescope, and May 15 with both the Andalucia Faint Object
Spectrograph and Camera on the Nordic Optical Telescope and the IMACS
instrument on the Magellan-Baade telescope show good matches with a
pre-maximum 1991T-like type-Ia supernovae.
CBET 4123 issued July 27

SUPERNOVA 2015N IN UGC 11797 (LOSS)
2015N   Jly  6.42   21 43 16.89  +43 34 47.6 17.6   36.2"W   12.9"N
G. Hosseinzadeh also reports a spectrogram on July 7.4 UT with the FLOYDS
robotic spectrograph shows it to be a type-Ia supernova.  They find a good
fit to the type-Ia supernova 2002bo at thirteen days before maximum light.
CBET 4124 issued July 28

Guy M Hurst