[BAA-ebulletin 00783] SUPERNOVA 2014J, SN 2014G, etc.

[Rick]

[BAA-ebulletin 00783] SUPERNOVA 2014J, SN 2014G, PSN J12184868+1424435 and PNV J16161867+1151058
(c) 2013 British Astronomical Association    http://www.britastro.org/

A new supernovae, now designated SN 2014J, has been discovered in M82 by Stephen J. Fossey, University of London Observatory (ULO), on CCD images obtained by himself and students B. Cooke, G. Pollack, M. Wilde, and T. Wright.  They used the ULO 35-cm Schmidt-Cassegrain telescope at Mill Hill, London, on 2014 Jan. 21.80UT. It is located at: RA 9h 55m 42.14s DEC +69 40' 26.0" (2000), 54" west and 21" south of the galaxy's centre. Their discovery is reported here
http://www.ucl.ac.uk/maps-faculty/maps-news-publication/maps1405

It is of type Ia-HV and its current magnitude is around 10.8.

Charts and a sequence may also be plotted using the AAVSO chart plotter http://www.aavso.org/vsp/chart and entering SN 2014J.  This can then be re-produced to any size and orientation by using the "Return and Replot" facility at the top right of the chart.

SN 2014G
This supernovae was discovered separately by Koichi Itagaki and Patrick Wiggins in NGC 3448 on 2014 Jan. 14.317 at mag 15.2 and is now around mag 14.4.  It is at R.A. = 10h54m34s.13, Decl. = +54?17'56".9 some 44" west and 20" south of the centre. Discovery images can be found here http://www.k-itagaki.jp/images/3448.jpg and here
http://users.wirelessbeehive.com/~paw/temp/NGC3448_2014JAN06-14.JPG.
This SN is of type IIn.

Charts and a sequence may also be plotted in the same way as for SN 2014J above.

PSN J12184868+1424435
This possible supernovae was discovered by the THU-NAOC Transient Survey (TNTS) on 2014 Jan 26.830 in M99.  Its position is R.A. = 12h18m48s.68, Decl. = +14?24'43".5 and the PSN is located 14" west and 16" south of the center of M99.  A discovery image can be found here
http://www.thca.tsinghua.edu.cn/~wangxf/TNTS/PSNJ12184868+1424435.png
and an animation here
http://s176.photobucket.com/user/walcom77/media/M99_H06_T11_January_28_2014_animation_zps2d0dc2b7.gif.html
Its mag is around 15.4.

No sequence is yet available for this object.

PNV J16161867+1151058
Finally, a possible new nova has been reported in Hercules at R.A. 16h16m18.67s Decl. +11?51'05.8" (J2000.0) at 13.1 mag (unfiltered) on 2014 January 24.824 UT.  It was discovered by H. Nishimura, Shizuoka-ken, Japan, on four 30-s frames (limiting mag.= about 15) using 200-mm f/3.2 lens + Canon digital camera, who writes nothing is visible at this location on his past frames taken on 2014 Jan. 18.854 and 22.839 UT (limit mag.= 15) using same patrol camera.

A chart and sequence is already available for this object and may be obtained as described above.

Roger Pickard, VSS Director
2014 Jan 28