13 Hours of NGC6188 from burbs

[cventer]

NGC 6188 is an emission nebula located about 4000 light years away in the constellation Ara. This image is presented in typical Hubble color Pallet.

Image Data: 20 x 12 min Ha, OIII and SII Bin 1 x 1 (approx 13 hours)
Camera: SBIG STF-8300 with FW-8
Mount: Paramount MX
Scope: Takahashi FSQ106 at F5
Processing: Image Processed with CCDStack 2, Photoshop CS 5.5.
Location: Inner suburbs of Melbourne Australia
Date: Taken on several nights between 1 May and June 10th 2012


Big learning curve processing this one and took me about 4 redo attempts to get it to where I was ready to post as I was certain there was a decent image in all this data. Afer first 2 attempts I went back and grabbed more SII and OIII data which was the turning point.



Hope you like it.


Link to larger and full frame versions here (http://www.dslrfocus.com/gallery/NG6188NB.html)

[tilbrook@rbe.ne]

Damn that's good!!!

I:bowdown: to your skills sir!

Cheers,

Justin.

[gregbradley]

Great image Chris.

I think narrowband suits this object better than HaLRGB.

Greg.

[FlashDrive]

WOW......that's nice. :2thumbs::2thumbs:

Flash

[alexandre]

Hy Chris
It's very nice picture !
Congratulation !!;)

by!
alex

[h0ughy]

very nice, lovely image

[jjjnettie]

What a super image!!

[stanlite]

it is indeed an impressive one ... something to aspire to i think ;)

[Mighty_oz]

Great shot, so was that about 4hrs worth of S and O ?

Marcus.

[cventer]

Thanks. Yes it was about 4.5 to 5 hours of OIII and SII and about 3.5 Ha from memory.

[cventer]

Thanks you. You are too kind. What help is seeing images like Martin Pughs which gives you a sense that there is so much more in your data than you realise. My first 2 attempts at processing this were just rubbish.



Thank for looking. :thumbsup:



Cheers. Thanks for looking and taking the time to comment.



Appreciate the feedback.:)



Thanks for commenting.



Sure does Greg. I like how different it can look depending on how you treat colors.



Thank you. My Skills I am sad to say are only about half of it. Being lucky enough to have nice equipment is a big part of it.

Some good reading on the subject of Narrowband processing also helps.

I found these articles very usefull when processing this image:
http://bf-astro.com/hubbleP.htm
http://www.rdelsol.net/ClippingMasks/ClippingMask.html

[Octane]

Superb, Chris.

Although, I'm going to be critical -- your composition would have worked better had you caught the planetary in it as well. That is, a horizontal composition, twisted vertically, in post.

Still, it is a beautiful piece of work, as is. Print, frame, and hang.

H

[RobF]

A most impressive image. Nothing amateurish at all about that one!

[strongmanmike]

Yeh that's great Chris nice going....getting plenty of practise in before the AG10 arrives ;)

Mike

[iceman]

Stunning!

[RickS]

I'm not a big fan of narrowband images but that one's lovely!

[dvj]

STF 8300? Looks like a winner. Nice one! I'd put it on the new ASA H8 f/2.8.

[cventer]

Agreed completely

I did not know that planetary on right was there. But I had gathered too much data to change composition on first night. Next time i woudl either rotate or shift whole thing to left.

[cventer]

Thanks. Actualy I have a Orion Optics AG10 F3.8 arriving shortly which will do nicely

[multiweb]

Very cool color blend. Little grainy in the core though between Oiii and Sii stars. Heaps of details too. :thumbsup:

[LucasB]

Well done Chris. That is a super image with fantastic detail! Thanks for the view. :thumbsup::thumbsup:
Lucas

[cventer]

Thanks. I will look into the grain. I suspect lack of signal , but maybe some selective smoothing in that channel might sort it out. Thanks for suggeestion.



Thanks Lucas.

[DavidTrap]

Very impressive.

I've just lashed out on some NB filters (already had the Ha), so hope to follow your lead on this sort of thing from the 'burbs!.

DT

[TheDecepticon]

Very nice, mate! :) So good in fact, I'm not even going to post mine!! :rolleyes: :P:D

[Paul Haese]

The smaller image is quite nice, colouring is good and pleasing and presents as quite smooth. When I went to the full res image some small items popped out at me. The first was where your pointing differed from one night to the next on the right hand side of the frame. There is a strip of noise. I get this somtimes too, if I sync the time too early in the day. Around the more prominent features you can see where you have selectively sharpened the image. I found that adjusting the opacity of the mask when selective sharpening works well to control this issue. I also agree that the planetary should have been included or it could simply have been removed. Given the strip on that side I would have done that.

That said, this is a fine image and very nicely put together. The data is obviously good and stars are superb in shape.

[cventer]

Go for it. You will love it. Opens up a whole new type of imaging.



Thanks very much. Dont worry about not posting. If we all did that then whenever guys like Martin Pugh posted images we would never post our own again.



Thanks Paul. I took some of your advice and backed off high pass filtering a bit with opacity slider. Also applied a little more smoothing to SII parts of the blue area. I kind of like the blue neb on the right. shows a hint of whats out here, but if I do this over I would definately get framing better now that I know its there. I cant see the noise strip you speak of but will have a better look.

[Paul Haese]

You could do a mosaic, that would increase the coverage.

[Ross G]

A great photo.

Amazing detail.

Ross.

[TrevorW]

Impressive result

[Logieberra]

Go the MX, one of the best pics I've seen from this relatively new mount! :)

[SkyViking]

What a great view of this spectacular area. Also great colour combination with the NB. Only minor thing would be that the bright stars of the NG6193 cluster look a little 'flat' (sort of more like grey discs than stars). But that's very minor, it's a great image very well done.

[cventer]

Thanks Ross. It is cool to see what can be done nowdays with right equipment from suburbia



Thanks Trevor



Thanks. Having a good mount that you can rely on to get 10min plus images is certainly a luxury



Point taken and agreed. Im not sure what I can do about it though but will have a play. Thanks for suggestion.

[[1ponders]]

Oooo nice Chris. I'm not normally a big fan of HP processing, but that looks gr8!

[CoolhandJo]

I love this :)

[stevous67]

Chris, it's a great image. Thank the GOD's for narrowband filters, especially for us city folk.

Steve

[Paul Haese]

This looks really good now. I just spent 5 minutes going over it and it just looks so slick. Love the colouring it is superb. I will be aiming for a similar browns when I complete all the data for the version I am working on at present.

I like the silky background in yours too. Very nice and that only comes with lots of subs. I note that you don't have any halos and I suspect this is more to do with not have a reducer in place. Even with the filters replaced on my system I am getting some halos and that I think is pure reflection.

Wonderful image Chris and worthy of IOTW in my opinion.

[Leonardo70]

Very nice.

Leo