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THE ASTRONOMER Electronic Circular No 3020      2014 Aug 17 18.30UT
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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CSS J174033.5+414756 (ASASSN-13ae)
Denis Denisenko reports that this very unusual large amplitude (~7m)
short-period (65-min) dwarf nova in Hercules is in outburst! 
  20140730.120  <142V   C. Chiselbrook (AAVSO)
  20140806.109   138V   C. Chiselbrook (AAVSO)
  20140806.993  13.98V  J.-L. Gonzalez Carballo (AAVSO)
  20140807.087   139V   C. Chiselbrook (AAVSO)
  20140807.157  13.77V  J. O'Neill (AAVSO)

The light curve of CSS 130418:174033+414756 from Catalina Sky Survey:
http://nesssi.cacr.caltech.edu/catalina/20130418/1304181400734166981p.html

Previous outbursts: 2013 Apr. 18 (discovery by CSS), 2007 May 15 (found post
factum in CSS data). There was extensive observing campaign in April-May
2013 following [vsnet-alert 15629]. The photometric behaviour (~50 days long
superoutburst and evolution of
superhumps) plus presence of Hydrogen lines in spectra allowed
classification of the star as a UGWZ dwarf nova. The period around 0.045d
makes it an extremely unusual object. Now we have an outburst just 15.5
months after the previous one!

SUPERNOVA 2014bv IN NGC 4386 (CORTINI)
2014bv  Jun 18.88   12 24 30.98  +75 32 08.6  16.0: 10.5"E   24  "N  
Additional CCD magnitudes for 2014bv:  May 20.91, [19.0 (Cortini); 18.930, R
= 16.2 (Nick James, Chelmsford, Essex, England; Celestron 11 telescope;
position end figures 30s.93, 08".8; UCAC-4 reference stars); 18.937, V =
16.3 (James)
D. C. Leonard: spectrum June 20 type-Ia about five days before maximum

SUPERNOVA 2014bw IN PGC 59263 (F. CIABATTARI ET. AL.)
2014bw  Jun 10.01   16 55 44.77  +26 15 28.6  16.9  14  "W    8  "N
Additional CCD magnitudes: June 10.920, 17.2 (Nick James, Chelmsford, Essex,
England; Celestron 11 telescope; position end figures 44s.76, 28".8; image
posted at website URL
http://nickdjames.com/supernovae/2014/psnj16554477+2615286_20140610_ndj.jpg)
; 11.870, 16.9 (G. Masi; remotely using a 43-cm telescope at Ceccano, Italy;
position end figures 44s.79, 29".0)
Dave Balam, Dominion Astrophysical Observatory, National Research Council of
Canada et. al. spectrum June 21 with the 1.82-m
Plaskett Telescope of the National Research Council of Canada, shows a
core-collapse event similar to the type-IIn supernova 1996L at 8 days
post-maximum light.

SUPERNOVA 2014bx IN NGC 6808 (S. PARKER)
2014bx  Jly 20.48   19 43 53.25  -70 37 52.0  15.8r  4  "W    8  "N
M. Childress: spectrum July 22 luminous type-Ia

Guy M Hurst