NGC 3576 plus dust

[Peter Ward]

Mulling over the data, I ponderd why the loops of this nebula showed a distinct magenta cast (due H-Beta), yet the associated nebulosity to the left of the loops were decidedly red. Ocham's razor generally works, hence I suspected interstellar dust.

A quick wip around the web showed hints of this, but I found nothing that captured it really well.

Sure enough, armed with yet more data (I think I devoted 20+ hours to this sucker) the background dust is indeed obvious....and , yes, yet another re-pro.

I opted for much lower contrast in this version (I suspect this really is a low contrast object) and while technicolour is nice...it lacks subtlety.

The end result is here (suggest you refresh your browser if you have a been there before)

http://www.atscope.com.au/BRO/gallery55.html

[multiweb]

Ah yes! :thumbsup: Well done. You can clearly see the brown stuff giving the warmer tinge to the left of the field. Top and bottom as well.

[Peter Ward]

Merci Marc ! But I suspect lacking popular appeal...

... Revenons à nos moutons

[danielsun]

Beautiful work Peter, very nice :thumbsup:

Cheers Daniel.

[jase]

Nothing wrong with getting the most from the data Peter. I wouldn't have even bothered Googling reference images. Stretch the data hard to see what's there, then decide how you want to present it. The added dust formation is merely icing on the cake for this image. Nicely done.

[Hagar]

Very nice Peter, To me the dust which is common adds to the image.

[Peter Ward]

Thanks Jase, Marc, Daniel Doug. Unfortunately I have to put up with a few gigawatts of urban lighting, hence working out what's a gradient and what's actually there at the signal floor requires a little homework. But I suspect I'm in good company as Bob Gendler does (or at least did) the same. Just one of the joys of being an urban imager :)

[h0ughy]

Dust and light pollution - you must be living in a city ;)

fantastic result Peter

[Peter Ward]

City? No, I'd describe Sydney as more of a basket case these days :)

[tornado33]

Yes a great result, this is one of the first pics of that nebula that shows interstellar dust as well as the brighter emission line gases.
When you did the Luminance shots, were you using the standard Infra red cut filter, or no filter at all?
Scott

[Paul Haese]

Lovely image, smooth and carrying a lot of detail. :thumbsup:

[spearo]

lovely!
well done
frank

[bmitchell82]

lovely image peter, its always great when you look at the image and go, hang on what is there... :) I agree with Jase though, the good old stretch the A55 out of something just to see what is there, like focusing really for those of us who still go by hand ;D

The only thing that i can see is some of the stars on my monitor look like they are pure red, dunno if its just because of the jpg reduction or something. but apart from that a kicker of a image!