M33 in narrowband

[RickS (Rick)]

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.

[rustigsmed (Russell)]

bicolour narrowband galaxies now??
interested to know how much Oiii you manage to get on a galaxy like this?
as the swedes would say varför inte? Why not!?

cheers

russ

[Slawomir (Suavi)]

Hi Rick,

I think it's an awesome composition - not sure what can be done to improve it.

The galaxy appears to be so alive with numerous star forming regions!

[RickS (Rick)]

Originally Posted by rustigsmed

bicolour narrowband galaxies now??
interested to know how much Oiii you manage to get on a galaxy like this?
as the swedes would say varför inte? Why not!?

Thanks for the comments, Russ. You have to try new things. Sometimes they even work

We only got 4 hours of Oiii which really wasn't enough for good SNR but there was a surprising amount of it. As you can see, there are only a few areas that are strong in Oiii but not Ha. I have an hour of Sii as well but it is pretty weak and a lot more data would be needed before I could do a Hubble version.

Cheers,
Rick.

[RickS (Rick)]

Originally Posted by Slawomir

Hi Rick,

I think it's an awesome composition - not sure what can be done to improve it.

The galaxy appears to be so alive with numerous star forming regions!

Thanks, Suavi! I have a mental picture of what it should look like and it's not quite there yet.

It certainly does show M33 in a new light... no pun intended There's a lot of structure the RGB images only hint at.

Cheers,
Rick.

[Placidus (Mike and Trish)]

Awesome, delightful, and inspiring

[RickS (Rick)]

Originally Posted by Placidus

Awesome, delightful, and inspiring

Thanks, M&T. It would be interesting to see if something similar could be done with a southern galaxy, say NGC 300?

Cheers,
Rick.

[gregbradley]

Great work Rick.

It really highlights the massive amounts of gas in these galaxies.

Greg.

[multiweb (Marc)]

Love it. That looks awesome.

[RickS (Rick)]

Thanks, Greg & Marc!

[Shiraz (Ray)]

Crikey that's different. Be very interested to see where this goes, but it sure is a great idea and already a very nice image.

[topheart]

Fascinating!
Well done!

Cheers,
Tim

[codemonkey (Lee)]

Great work Rick, nice to see such a different take on a commonly-imaged subject!

[Fabiomax (Fabiomassimo)]

Very interesting approach and detailde informations about different envirinmental .
Cheers,
Fabiomax

[RickS (Rick)]

Thanks Ray, Tim, Lee & Fabiomax!

[RobF (Rob)]

Interesting approach Rick. Looks "angry" - like a single match would set it all off

Great data. Will be interested if you do try other approaches.

[DJT (David)]

This NB galaxy imaging thing is going to catch in I think. Great the way it brings out all of those star forming areas and the bicolour works a treat.

Nicely done

[Rod771 (Rod)]

Awesome Rick! Thinking outside the box, fantastic!

[Paul Haese]

Like I said on FB, it's different. I think the colouring works well, though it still looks odd for a galaxy Rick. An interesting examination all the same.

[RickS (Rick)]

Originally Posted by RobF

Interesting approach Rick. Looks "angry" - like a single match would set it all off

Great data. Will be interested if you do try other approaches.

Thanks, Rob. I've done a few "angry" images now. Must be my thing

Originally Posted by DJT

This NB galaxy imaging thing is going to catch in I think. Great the way it brings out all of those star forming areas and the bicolour works a treat.

Nicely done

Thanks, David. I don't think there are a lot of galaxies that are bright enough in NB to do this but it would be interesting to find out!

Originally Posted by Rod771

Awesome Rick! Thinking outside the box, fantastic!

Ta, Rod.

Originally Posted by Paul Haese

Like I said on FB, it's different. I think the colouring works well, though it still looks odd for a galaxy Rick. An interesting examination all the same.

Thanks, Paul. It is definitely odd!