M83

[Peter Ward]

Between the perpetual rain on the east coast and current full moon, I took the time to re-process this one. Hope you like it.

http://www.atscope.com.au/BRO/images/m83repro.jpg

[sheeny]

I do like it, Peter! Thanks for sharing. (I'd off some constructive criticism if I could think of something worthwhile to say!;)

Al.

[Astro78]

Stunning mate, stunning!

[iceman]

A very beautiful image of one of our most beautiful southern galaxies.

Stunning result, Peter.

[Ric]

Wow, that's pretty special Peter. I really like the dust lanes and the detail in the spiral arms.

Cheers

[Antu]

Beautiful image ! Very nice image processing

[edwardsdj]

Stunning image Peter :)

The detail in the arms is awe inspiring.

[theodog]

Stunning image Peter, plenty of detail and colour.:)
What processing did you use as I couldn't help but notice some stars appear as 'donuts'?:rolleyes:

[Peter Ward]

I did use a localized high pass filter which is no doubt what you are seeing......I can live with it :)

[rat156]

Hi Peter,

It's very nice, but...

It's a little too blue for my liking.

No I'm not just trying to start an argument, I see no reason why the Ha regions in external galaxies should be a different colour than those in our own.

This is one of the reasons I struggle with Galaxy shots, I can never seem to get the colour balance right.

OK, can most of that, I just loaded the shot into Photoshop, it comes out a different colour!

I struggled to get a nice shot of M83 last year, finally got something half decent, but never in this league. Just wish you could eliminate the diffraction spikes!

Cheers
Stuart

[Peter Ward]

Managing colour space is a perennial challenge. Photoshop has a multitude of proofing profiles. Small variations in hue are reasonable, and probably unavoidable....but I think we've covered that elsewhere :)

The diffraction spikes are built into the 'scope ;)

I sometimes put bits of string over a perfectly good refractor objective to get them eg:

http://www.atscope.com.au/newsky/ngc6231rgb.jpg

[marc4darkskies]

Maybe a bit bluer than I'd make it, but a spectacular image Peter. I'm still dreaming of taking shots like that!



Oh no, not another imaging equipment artefact lover!! ;) Maybe you should just paint them into the objective to save time and so it becomes a "real" artefact! :P:lol:

Cheers, Marcus

[h0ughy]

great image - but where did you find the clear skies to take that?

[Peter Ward]

Houghy,

Thanks.

As I mentioned in my original post, this is (about one year old) data I reprocessed while sitting under the clouds.

I see a few patches of blue outside now....must be a full moon tonight!

[tornado33]

Yep great image there. Very deep.This is all we can do of late, reprocess past images with the unending cloud.
Scott

[Hagar]

Great image Peter with lots of fine detail. Love the small surrounding galaxies. I realy shows you have skill to pas on to the rest of us mere mortals.

Great work

[Bassnut]

Done on a box browny and a Tasco 50mm with string on the front for diffraction spike effect methinks. Are there real stars there, or were they Photo shoped in? ;-).

[Peter Ward]

Box brownie *deluxe* :thumbsup:

[ballaratdragons]

I opened the image and my 1st thought was, "Yuk! it's too purple".

Then I read everyone elses posts and some say it's too blue, so it must be my monitor.

Nice image. Nearly like Erics (ezystyles).
If it was a year ago, what gear did you use? (scope/camera etc)

[Bassnut]

Dont ask Ken, you know the answer will give you a head ache ;-).

[Peter Ward]

Due to popular demand Ive now backed off the blue channel...

But decided nada on dropping the resolution and depth. :)

Details; STL11000xm, PME, RCOS 14.25 F9 and about 8 hours of data.

P.S. You might have to reload the link/page to get the current version.

[Garyh]

Very nice Peter! I think the color look spot on now! :thumbsup: but I don`t mind that little extra blue myself ;)
yeap its great weather to do some processing! I can count the clear nights on one hand over the last month!
cheers Gary

[sjastro]

Well done Peter for the Image of the Week.

Obviously the thread on colour balance didn't harm your chances.:)

Steven

[leon]

Bugger the colour, that is a ripper of a shot Peter, what I would do to get something like that.

Leon

[tornado33]

yep that looks great. Any more detail and we will have to start assigning names to those pink hydrogen regions :)
Scott

[jase]

Indeed a lovely image Peter. Well done. You've applied the general rule of thumb in both images - If you don't have a neutral background (due to sky glow/pollution), make sure the shift is in the blue. Look forward to seeing more.

[gregw]

Thank you for the opportunity to say how impressed I have been by the content on iceinspace. For a relative newcomer to the somewhat obsessive and wallet emptying hobby of astronomy it is helpful to know that I am not the only semi crazy out there. It is encouraging to see people willing to ask questions and the readiness of people with knowledge to respond. I recently acquired a HEQ6 pro mount which I took up to Giraween National Park last weekend with my ED80 and had two nights of excellent albeit a bit chilly seeing. We have had nothing but cloud in Brisbane for it seems the last three months.

regards to all

Greg W

[dugnsuz]

Fantastic Image Peter:thumbsup:


ps...
Welcome to IIS Greg,
Hope to see loads of images taken with your very nice set-up
Cheers
Doug