This is a Ha/Oiii bi-colour of the great M33 with RGB stars for flavour. Data captured at SRO in California.
I'm not completely happy with this yet but I need to stop processing it and take a break before I have a run at it again
I think it's reasonably presentable now and certainly different enough to the usual M33 image to be interesting.
Scope: Ceravolo C300 @ f/4.9 = 1470mm FL
Mount: AP1100
Camera: FLI PL16803
Focuser: Atlas
Filters: Astrodon
Guiding: Lodestar II / Tak guide scope
Image scale: 1.26 arcsec/pixel (drizzled to higher res)
Exposures: 30x1800s Ha, 8x1800s Oiii, some RGB
Processing: PixInsight 1.8
Acquisition credit: John Kasianowicz, Daniele Malleo, Leonardo Orazi, Rob Pfile, Rick Stevenson and Jerry Yesavage.
Processing credit: Rick Stevenson
High res version on Astrobin:
http://www.astrobin.com/228803/
Cheers,
Rick.