There has been a Supernova discovered in NGC4038, one of the "Antennae" galaxies in Corvus. Don't yet know who discovered it but this is the 5th Supernova in this galaxy pair. Stu Parker measures around mag 15.5 tonight.
This is a great imaging opportunity and may even become bright enough for visual observations as 2 previous supernova reached mag 11.8 & 12.8 and the other 2 in the mid mag14s
Some details below.
PSN J12015272-1852183, CBAT TOCP discovered 2013/06/22.120 by unknown
Found in NGC 4038 at R.A. = 12h01m52s.72, Decl. = -18°52'18".3
Located 0" east and 0" north of the center of NGC 4038
Mag 15.8:6/22, Type unknown (References: SN 2007sr 2004gt 1974E 1921A)
One very busy galaxy pair.
Thanks Peter, something new to look forward to in the comings weeks if it gets bright enough for my scope
Will check on it now on Bright Supernova page.
Cheers
Apparently this is a type 1c Supernova about a week before maximum light, so this should become a visual SN for larger telescopes and those able to take spectra.
Just heard that professional astronomers have much HST data available and no doubt will be looking for the progenitor. Early images of this may be very useful to them.
So IIS member images may be very useful and we can pass them on, with due credit of course.
HI all,
here's an 18 minute image taken last night, 25 June, moon in the sky.
Meade 14" R at F7 with ST10XE, binned 2x2. (36 x 30 secs)
It is brightening quite quickly.
This is interesting, re the Sn in NGC5806 and using the HST data to identify the Sn progenitor. This is what the pros will be now trying to do with SN2013dk in NGC4038. https://dl.dropboxusercontent.com/u/...progenitor.jpg
This SN has been identified with a Wolf-Reyet progenitor, a key to understanding the detonation mechanism. The initial ejecta was moving outward at 10% of the speed of light, which is impressive energy considering the amount of matter involved, some 30% to 40% of the mass of the Sun.
