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THE ASTRONOMER Electronic Circular No 2839      2012 Jly 19 11.46UT
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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AX PERSEI
U. Munari et. al., University of Padova, Dept. of Physics and Astronomy
report on 'The Astronomer's Telegram 4265' that the
prototype symbiotic star AX Per is undergoing an outburst, bluer and
brighter than the last one it underwent in 2009.
(CBET 17570). The following photometric data are representative of the
behaviour exhibited by AX Per during the last two weeks:
        V       B-V     V-Rc    V-Ic
July 08.050     10.322  0.704   0.822   1.969
July 13.023     10.392  0.708   0.879   2.047
July 18.038     10.428  0.725   0.877   2.068

An absolutely calibrated low resolution spectrum of AX Per was obtained
on 2012 July 18.03 UT with the Asiago 1.22m telescope of the University
of Padova. An Echelle spectrum obtained with the Multi-Mode Spectrograph
mounted on July 18.11 on the 0.60-m UT telescope of the Schiaparelli
Observatory in Varese was also secured.  The spectra are characterized
by a strong blue continuum with the TiO bands of the cool giant that
become visible only longword of 4800 Ang.  The Balmer continuum is in
strong emission.  The emission lines are dominated by hydrogen Balmer
and HeI.
The Hbeta line is 3.3 times stronger than HeII 4686.

SUPERNOVA 2012cv (E. SANDERS ET. AL.)
2012cv  Jun  7.15   09 58 28.91  -10 53 12.4  16.3   3.5"W    0.9"N
M. Graham: spectrum June 13 type-Ia about seven days past maximum.

SUPERNOVA 2012cw IN NGC 3166 (KOICHI ITAGAKI)
2012cw  Jun 14.84   10 13 47.95  +03 26 02.6  16.5  34  "E   33  "N
X.-F. Wang: spectrum June 18 type-Ic around maximum. Similar to SN
2004aw at +2 days.

SUPERNOVA 2012cx IN PGC 59729 (E. SANDERS ET. AL.)
2012cx  Jun 15.29   17 10 05.86  +42 22 23.5  17.3  10.7"E    5.1"N
G. H. Marion: spectrum June 19 type-Ia a few days before maximum.

Guy Hurst, using the 0.61-m Sierra Stars Cassegrain telescope undertook
photometry and obtained the following magnitudes:
2012 June 24.29UT, 16.7V; July 15.23UT, 16.5V: (30sec exposures and
reduction using the sequence TA20120628).

Guy M Hurst