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THE ASTRONOMER Electronic Circular No 3159      2016 Apr 06 14.29UT
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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LBV PSN J12355230+2755559 in NGC 4559C
Ron Arbour, South Wonston, England reports the detection, during supernova
patrolling, of a further outburst of the LBV in the galaxy NGC 4559C (small
companion to NGC 4559) on 2016 Apr 05.985UT with his 0.30-m f/6 Schmidt
Cassegrain Telescope and SXVF H9 CCD camera. The object, with an unfiltered
magnitude of 17.10V, was also recorded on four subsequent images to a
limiting magnitude of approx. 19.0. Astrometry gives the precise position
as:

RA 12h 35m 52.30s DEC +27 55'55.8" (2000) with offsets from the host as:  5"
E  1" S.

Previous outbursts were:
2012/01/11.25 16.7 V - LOSS (Discovery)
2014/02/15.72 17.0 V - Itagaki
2014/06/22.89 17.0 V - Giancarlo Cortini
The LOSS image showing first discovery and identification is at:
http://w.astro.berkeley.edu/bait/public_html/2011/NGC4559ab.gif

A more detailed list of detections/discoveries can be found at:
http://www.rochesterastronomy.org/sn2012/lbvn4559.html

A 'sequence' image by Odd Trondal can also be found at:
http://www.rochesterastronomy.org/sn2012/reference/n4559.jpg

Guy M Hurst