[vsnet-alert 17910] Re: PSN J12215757+0428185: possible supernova (13.6 mag) in M61

walcom77 walcom77 at gmail.com
Thu Oct 30 23:00:24 JST 2014


Hi All

Following the posting on the Central Bureau's Transient Object
Confirmation Page about a possible Supernova in M61 (or NGC 4303 -
TOCP Designation: PSN J12215757+0428185) we performed some follow-up
of this object through a 0.10-m f/5.0 astrograph + CCD from MPC Code
H06 (iTelescope, New Mexico).

On our images taken on October 30.5, 2014 we can confirm the presence
of an optical counterpart with unfiltered CCD magnitude 13.2 and at
coordinates:

R.A. = 12 21 57.61, Decl.= +04 28 17.8

(equinox 2000.0; UCAC-3 catalogue reference stars).

Our confirmation image & animation are available here:

http://bit.ly/1u9CeU4


Direct links:

http://bit.ly/1rVHdBj

An animation showing a comparison between our confirmation image and
the archive POSS2/UKSTU plate (IR Filter - 1991):

http://bit.ly/13jRhPf

With kind regards,

Ernesto Guido, Martino Nicolini & Nick Howes
http://remanzacco.blogspot.com
http://twitter.com/comets77


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