HI all,
here's a quick image of the new PSN in IC5267 grabbed between clouds to highlight the location for you.
It's only 11 images of 30 seconds each combined while clouds drifted through.
From CBET 2902 (hopefully CBAT don't mind me posting this):
"SUPERNOVA 2011hs IN IC 5267 = PSN J22571177-4323048
Colin Drescher, Calamvale, Queensland, Australia, reports the discovery by Stuart Parker (Oxford, Canterbury, New Zealand) of an apparent supernova (red mag 15.5, measured by Drescher) on a 30-s unfiltered CCD image taken on Nov. 12.476 UT using a 35-cm Celestron C14 reflector (+ ST10 CCD camera)."
Some lovely images guys.
Here's my set from tonight, through high cloud and an ambient of
25C
Cooled set but the cloud made the background fog a bit.
Seeing was very good.
There is an extant H-alpha image of this galaxy in a recent paper by Ron Buta and Colleagues.
I have sought permission from Buta to publish it in this thread!
The H-alpha emission from this galaxy looks faint, which is indicative of a very modest overall rate of formation of massive stars, and a modest population of supergiant stars in this galaxy. Therefore, there ought not to be a high incidence of type II supernovae due to the core-collapse of massive stars.
The overall stage of this galaxy in the Hubble Sequence is S0/a, as given in this paper, and with a well-defined outer ring.
The S0/a galaxy type is a bit of a "catch all" for those galaxies which display more blue knots than an S0 galaxy but less blue knots than an Sa galaxy.
Last edited by madbadgalaxyman; 19-11-2011 at 11:17 AM.
Reason: typo
Hi guys
FWIW, I managed to get about 50 minutes of luminosity of IC5267 on 19 November. Skies haven't co-operated since to get more. I do have some limited RGB data, but i'ts not processed yet.
Even though the image was taken at home in Windaroo which is affected by light pollution form Brisbane and the Gold Coast, the delicate and sparsely populated outer arms are quite obvious. Very pretty.
Meade 14", F7, ST10XEI, binned 2x2, no filter - composite of 26 x 2 minute images, Losmandy G11 Skywalker.
I observed IC5267 last night with the 16" scope and high mag and the Supernova was not visible.
The Nuculus is quite bright and would make this SN difficult even if it was brighter.
Cheers
Not visible in the 16"?? Ahhh, the delights of CCD imaging, no probs there!!!
I'll be away until mid December, so no more chances to see or image it.
Happy birthday Ron.
