Omega Cent STX

[Peter Ward]

Originally Posted by Hagar

Beautifully resolved...........What length subs did you use for this image?

Thanks. My standard sub from the 'burbs is 10 minutes.

[Peter Ward]

Originally Posted by DavidTrap

Just worked out what song that was you were "singing" gents -

I suspect Procol Harum might be lost on a few younger ISS members.

[mithrandir (Andrew)]

Originally Posted by Peter Ward

I suspect Procol Harum might be lost on a few younger ISS members.

Their loss.

[Paul Haese]

Cracker. Love the colours, field width and height. Core depth is great, sky background is superb. Yes you ought to go onto something else but I would be very happy with this myself and I am glad to see this done so well again. Now for M8

[duncan]

NOW THAT'S A CRACKER!!!!!!!!!!!!!!!!!!!!!!!!!!:e yepop:
Cheers,
Duncan

[Peter Ward]

Originally Posted by duncan

NOW THAT'S A CRACKER!!!!!!!!!!!!!!!!!!!!!!!!!!
Cheers,
Duncan

Very kind remarks Duncan. While Omega is bright, I find it's a tough test object, in that any guiding/image plane/tracking problems become very obvious at long FL's (+ 2500mm) . Seemed to work out OK on this occasion

[Martin Pugh]

Hi Peter
good to see a colour image from you and the STX (unless I missed an earlier post). Fine image indeed.
I am interested in your efforts to reduce some effects going on betwen the FFC and the sensor. So, you are not trying to get as close as you can to your optimum backfocus distance for the RC, but adjusting the distance between the camera and the FFC by adding/subtracting those spacer/washers that RCOS sells?
thanks for the clarification

Martin

[Peter Ward]

Originally Posted by Martin Pugh

..... So, you are not trying to get as close as you can to your optimum backfocus distance for the RC, but adjusting the distance between the camera and the FFC by adding/subtracting those spacer/washers that RCOS sells?

Martin

Thanks Martin...

Re the rings: Sort of.

I do infact try to keep the backfocus at optimum, but the FFC changes the FL.

I have not been able to get exact numbers from RCOS, so the optimum FFC to sensor distance determination, has been a trial and error process using the FIA rings.

I suspect I am close, but perfection would require a custom spacer which I don't have at present.

[Satchmo]

All the red stars remind me of the crowning view I had of this placed overhead from NW NSW , through 20" F5 binoculars and 17mm Naglers in 2002. you could pick out all the red stars right in to the core with no burn out , and chromatic stereopsis made all the red stars look closer , so the whole thing was fully 3d. Good photos remind me of how different the visual and photographic view can be.

[TheDecepticon]

What an awesome shot of such a great object.

[Peter Ward]

Originally Posted by TheDecepticon

What an awesome shot of such a great object.

Thanks. Omega is a southern Gem....eagle eyed observers will spot a deep red variable buried in that blase of blue and yellow stars.

[loc46south (Geoffrey)]

Had a quick tally up and I'm sure there are 17 stars missing.

Seriously though - excellent image - shows what is possible with good optics.

Geof

[Peter Ward]

Originally Posted by loc46south

Had a quick tally up and I'm sure there are 17 stars missing.

Seriously though - excellent image - shows what is possible with good optics.

Geof

...they'd be the variable ones. That said, I'd only rate the optics as
less than half of the end result. You need an accurate mount+guiding first and foremost....the best optics on the planet won't help if their images are being smeared all over the sensor

[Jen]

very nice Peter but that makes my first pic look like i have way much more to learn and the desperate need for a new mount Keep em coming love your work