NGC 1512 is a lovely ring galaxy with a prominent bar and companion galaxy in Horologium. It's quite modest in size with the main visible component around 9' X 5' and shines at Mag 11 with a low surface brightness of just 22.7 mag/squ arc sec
The cool thing is, I saw a Galaxy Evolution Explorer Satellite (GALEX) image taken in UV of NGC 1512 and it showed some otherwise invisible or almost invisible (in visible light) outer arms extending a long way form the galaxy plus a bit of a tangle of shorter faint arms, all looking like a complex history of interactions...and I thought hmm? I wonder what the AG12 could get with a bit of exposure time
Well..at 10hrs it is almost Mega data Paul and since it was through a 12" at F3.8.. is probably equivalent to about 50+hrs through a 4" @ F8 and marks the longest exposure I have taken so far with the AG12 YAAAY
Last edited by strongmanmike; 19-11-2013 at 09:31 AM.
Yeah I like this one. Maybe a little blue magenta, but heaps of cool detail.
For the record though it is a 4" f5.6, so that would make it 28 hours instead of 50.
Needs more data though still. Another 10 hours it would look slick, slick slick. So mega up dude.
Ahh huuuh....
Soooo, a galaxy I have NEVER seen posted on IIS before and it reveals things that are outside the realm of the usual NGC 253 or Lagoon Nebula (love the Lagoon Marc ) aaaand it is just too magenta/blue?? geeeez
3 X the aperture and two F-stops...hmmm? I think the mathematicians out there might be able to clarify things here...any takers?