Omega Centaurus with QHY9

[Hagar]

Peter Wards lovely rendition of this beautiful Glob spurred me on to give it a try tonight myself with a somewhat smaller imaging rig.

I am pretty happy with the end result.
I do believe my camera has a bit of a tilt which needs to be rectified to fix the bottom right stars.
I need to attach it with all screwed adapters and remove the camera adapter.

Imaging Scope: Takahashi FSQ106ED with 1.6 extender (848mm)
Mount: G11 with Gemini
Guiding: QHY5 and WO 70MM scope
Camera: QHY9 with QHY filters
Image details: 10 X 2 minute exposures each RGB
15 X 2 minute exposures Luminance
90 minutes total exposure

Higher res full frame version (1.1MB)
http://www.darkskyau.com/cm/displayimage.php?pid=245&fullsize=1

Full res full frame version (6.8MB)
http://www.darkskyau.com/cm/displayimage.php?pid=246&fullsize=1

Comments welcomed
Thanks for the inspiration Peter.

[Grahame]

Nice work Doug, think I'll have to give it a shot also :)

Grahame.

[desler]

Such detail in the core! I didn't even notice the corner stars.

Really very nice image Doug!


Darren

[telecasterguru]

Doug,

Great colours in the image. Well done.

What processing do you use?

Frank

[DavidTrap]

Not quite the same punch as Peter's, but a fine effort none the less.

DT

[Hagar]

Thanks Grahame. A target often overlooked because we see so much of it but well worth a try.



Thanks Darren, I was a bit happier with this one. Fix the tilt and all will be good me thinks.



Thanks Frank, Basically it is registered and stacked in Images plus. RGB is combined in IP also then taken to Photoshop for a stretch and to blend the Luminance in.



Thanks David, Hard to get the same sort of punch with about 1/4 the focal length and half the pixel count. I am still pretty impressed with 2 minute exposures through an inexpensive camera and what can be achieved with the Takahashi at f8.

[Exfso]

Nice one Doug, you gotta be happy with that mate.

[duncan]

Lovely work. One cannot compare this with Peters' image.
Two totally different cameras.
Like me your probably wishing for a High Res imager. We just need to win lotto,LOL.
Nicely done.
Cheers,
Duncan:thumbsup:

[Peter Ward]

Stick with it Doug. Focus looks a tad soft to me, as I would have expected the Taka to deliver absolute pin-points at that FL.

The rest looks pretty good. :thumbsup:

[Hagar]

Thanks Peter, very happy considering some previous attempts, still a lot of room for improvement.



Thanks Duncan, The diference in overall resolution is definitely noticable. Come on Tattslotto.



Thanks Peter, You could be right. The one thing I have found with the Tak is that a small change in temprature makes a big change in focus. Might have to get the auto focus with Robofocus up and going.

[Satchmo]

Nice shot, Doug. Just a minor suggestion. Why not crop it so it is centered in the field.

[Bassnut]

Well, immediately zooming in to 400% (as you do with any Omega cent), looks pretty fine to me, guiding is smick, but there is some sort colour offset there like coma or something.

Anyway, cant compare a 3m FL RC pic with a tiny refractor I wouldve thought?.

[Hagar]

It has taken a while Mark, You are the first to comment about framing. I got sick of seeing it always dead centre so thought I would move off centre but was surprised you were the only one to comment.



Thanks Fred. 830mm doesn't compare well with 3000mm. The colour offset is the problem I have been having all along with the QHY9. I have a feeling it is a tilt problem with the camera. Hopefully I will be able to fix it with a screw together coupling. Time will tell.

[Jen]

:thumbsup: nice one Doug :) im trying to take shots of this and it looks nothing like that :lol::lol::rolleyes:

[peter_4059]

Nice shot Doug. Stars look nice and round - what made you stop at 2 min subs?

[Hagar]

Thanks Jen, It's always a nice bright target to learn with and hone your skills a bit. Processing it is something else. It can be quite dificult.



Thanks Peter, I stopped at 2 minutes because it was really only a test on the camera and even at 2 minutes it did show up some problems I will need to work around.

[Jen]

:) mmm so next lessons at Snake Valley will be on processing images i think ;):thumbsup:

[spacezebra]

Excellent Doug! Love your work.

Cheers Petra d.

[David Fitz-Henr]

That's a nice image Doug - fully resolved to the core. Nice work for a 4" scope!

[h0ughy]

nice looking shot there Doug - i take it youre enjoying the qhy9?

[multiweb]

Beautiful - very sharp looking. Great shot. :thumbsup: