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Peter Ward
18-11-2010, 10:13 PM
If you happen to live anywhere near Sydney....you'll know about the weather. ( Mike's re-pro inspired me :D )

Some quite old plus a teeny bit of newer STX data in this one...

Anyway here it is (http://www.atscope.com.au/BRO/gallery70.html)

Octane
18-11-2010, 10:17 PM
That is so beautiful, Peter. Far out.

H

jase
18-11-2010, 10:18 PM
Silky smooth Peter. Very aesthetic. What grabs me is the nucleus glow through the dusty arm. Top shelf.

Peter Ward
18-11-2010, 10:26 PM
Thanks H, Jase :)

But an exercise in frustration 'methinks. More a re-pro than new data.

Some great gear literally getting cobwebs on it here.... sigh...

strongmanmike
18-11-2010, 10:27 PM
:lol:

Re the image - the stars are very tight, I actually pasted the more blobby stars back in for my recent close up as I think the decond stars can look a bit harsh. No offense intended Peter but this presenation looks more like a coloured charcoal drawing rather than a photograph or image...strange :shrug:

h0ughy
18-11-2010, 10:29 PM
wOW that is nice. November needs to be renamed repovember

h0ughy
18-11-2010, 10:29 PM
LOL isnt AP a form of Art;)

Peter Ward
18-11-2010, 10:32 PM
What?!! Don't you drink charcoal filtered burbon?

Smooth as...... :lol:

strongmanmike
18-11-2010, 10:35 PM
Nah hate Burbon, more of a Whisky drinker ;)

Peter Ward
18-11-2010, 10:39 PM
Ah! Explains the kilt. :D

strongmanmike
18-11-2010, 10:47 PM
What's "AP" Dave..? Aardvark Poo :question:

h0ughy
18-11-2010, 10:50 PM
WOW thought three letter acronyms were hard so i made it only a two letter one - Astro Photography.......must be the wool in the kilt?

marc4darkskies
18-11-2010, 10:51 PM
Show off! :thumbsup::thumbsup:

The weather sucks, the dollar is deliberately tormenting me and I have nothing to reprocess ... <sigh>

Cheers, Marcus

strongmanmike
18-11-2010, 10:59 PM
Oh...I do AstroImaging though...what do you do? :poke: :lol:

Peter Ward
18-11-2010, 11:04 PM
Ta, Marcus, Dave. :)

Charcoal sky. Tight stars. I can cope with that :D

strongmanmike
18-11-2010, 11:33 PM
Bah you just not thinking out side the square enough Marcus..com'on THINK! :lol:..hmmm? you haven't imaged The Sombrero sooo that's out...hey I know, repost exactly the same image you did 2 years ago of NGC 4945 that'll do it :thumbsup:

h0ughy
18-11-2010, 11:41 PM
:question:well if its through a lens its photography:thumbsup: if its off a mirror:P i suppose thats an image LOL. I can see you are full of AI Mike:rofl:....

Peter Ward
18-11-2010, 11:43 PM
Humm... same/similar data....re-processed... Who would do such a thing? :D

h0ughy
18-11-2010, 11:46 PM
Watch out i can see Cent A repros at 20 Paces here;)

strongmanmike
19-11-2010, 12:00 AM
Yeah Galaxy Wars :fight: in a dome far far away a 14.25" ion milled RC takes on a pristene 6" refractor in a.... cow paddock :question:...:doh:

atalas
19-11-2010, 12:25 AM
Looks great Peter.

Hagar
19-11-2010, 05:06 AM
Lovely image Peter, this just gets better and better each and every addition of data.
Beautiful.

Alchemy
19-11-2010, 07:02 AM
Methinks peter has won this battle, time to get some bigger guns mike..... 12 inch reflector perhaps;)

A repro of data to be sure, but it's worth another look, agree with jase the luminescence through the dust's lovely. At larger magnification it might look a little over sharpened, but here it looks good. The outer halo does appear to have some stepping in the tones, a little blurring might help. But overall, I wish my gear would do that well:thumbsup:

multiweb
19-11-2010, 07:54 AM
Very cool. Great pic. The dust lane details and the nucleus are unreal. Top shelf. :thumbsup:

Peter Ward
19-11-2010, 10:18 AM
Thanks guys, your positive comments are as always, appreciated. Just some background info. The scope is a F7.9 computer polished (no ion milling) RCOS 14.25".

Bulk of the data (about 5 hours) was through a STL11000 with an AOL.
Another 40 minutes of STX16803 luminance was added for the re-pro.

In either case M104 is placed about as poorly as possible in the North (right in the sky glow of downtown Sydney) as it transits when seen from my backyard.

This causes all sorts of grief with gradients which I suspect I'll only ever solve fully by a re-shoot from a dark site.

wysiwyg
19-11-2010, 11:57 AM
Nice one Peter!

Paul Haese
19-11-2010, 12:13 PM
Love the colour, perspective and detail. Some of the speckle needs to be there I think to give the edge detail some authenticity. I think this is why the image looks just a teenie weeny plastic to me.

Hoooowever, I personally would be absolutely stoked with this image if I took it. The warm tones really do it for me. Nice repro Peter. Wanna loan me your scope? I have lots of clear sky here.

CoolhandJo
19-11-2010, 01:02 PM
ahh.. I remember the original posting! Thought to myself - "The best ever image I have ever seen (including the HST version in the comparitive analysis!)". You could probably die now and go to Astro Photography heaven having reached the pinicle with this image?!? > But I am sure there is another masterpiece brewing in you yet!

Peter Ward
19-11-2010, 03:17 PM
Thank you indeed. There are so many narrow field objects I'd like to investigate at high-res. Unfortunately, SBIG's new differential guider and AO-X is unlikely to be available before mid 2011 which (like the weather) will hamstring my efforts....but hopefully at least the East Coast weather will clear before then! :)

gregbradley
19-11-2010, 07:37 PM
That is superb. I also like the way the glow of the nucleus shows through the dusty ring. Amazing what can be achieved with today's gear. That would have been beyond the standard of professional observatories not that long ago.

Greg.

bartman
20-11-2010, 04:37 AM
Thats Awesome Peter,
As Steve said whatever you have done with it, its still bewdiful!
As said before I like the glow of the nucleus on the disk!
Bartman

strongmanmike
20-11-2010, 09:43 AM
Yes I am just flattered that Peter decided to post his version straight after I posted mine, this far out from M104 season t'is a remarkable coincidence :rolleyes: :lol: ...the war thing was coined by Houghy not me, I just ran with the gag :D. Yes even though the final appearence looks rather painted and the orange core glow not real, the detail in Peters image is astonishing...almost too good :eyepop:.

Mike

TrevorW
20-11-2010, 11:09 AM
As always nice, however the core seems a bit wrong and there appears to be some star elongation (but I could be cross eyed from looking at the image), personally I prefer the original but there again this is what happens when there is foul weather and we get bored. Personally I'd go on a very long road trip, hitch a ride with Leon, there's bound to be dark skies somewhere out there.

Peter Ward
21-11-2010, 09:41 PM
Something lost in translation here? No co-incidence as my interest was piqued after seeing you data Mike....as I mentioned in my original post.

M014 is not a subject I tackle with my 6" AP as I'm of the opinion the CCD sampling is beyond its limit at that focal length for an optimal result.

There are many many layers to my data (about 80 or more....as I frankly lost count) which may well have contributed to some elongation of stars during the stacking process.

But I was curious to see how the range of my data would fare after similar treatment. Quibbles to be sure, but I'm pretty happy with the result. :)