NGC6164 in Norma

[cometcatcher]

Processing one of last night's images. This is NGC6164.

Text from Anne's Astronomy News.
"NGC 6164 is a bipolar emission nebula of about 4 light-years across that lies some 4,200 light-years away in the southern constellation of Norma. It is approaching us at approximately 53.9 kilometers per second."

Image details: Bintel 8" F4 Newtonian, Baader MPCC MKIII, HEQ5 Pro unguided, 104 x 30 seconds with a Baader Semi-Apo filter, 201 x 30 seconds with a CLS filter, stacked in DSS, combined and processed in Photoshop. Pentax K-5.
Full field at Astrobin. ---> http://astrob.in/175864/0/

[nebulosity.]

That's fantastic Kevin! Lovely and sharp, what ISO are you shooting at?

Cheers
Jo

[RickS]

Nice star colours and the bright Ha shell came out well, Kevin. I can see a hint of the outer shell in one spot.

Cheers,
Rick.

[tilbrook@rbe.ne]

Nice work Kevin!:thumbsup:

Nice amount of detail in the nebula, good colour too.:)

Cheers,

Justin.

[strongmanmike]

Ah huh! t'is the Fighting Dragons golden egg season once again! :clap: bring'em on hee yaaa...

Nice start Kevin :thumbsup:

Mike

[gregbradley]

Lovely image, Great colours.

Greg.

[cometcatcher]

Thanks Jo. ISO 1600 for the Baader filter and ISO 3200 for the CLS. I'm not sure ISO makes any difference to this camera but I need to do more tests to find out.



Thanks Rick. Yes that outer shell is a faint one. I was looking at it on google images but didn't expect to get any of it. I'm happy to at least get a trace.



Thanks Justin!



Thanks Mike. I was wondering if it had a common name?



Thanks Greg. First time I have imaged this so didn't know what to expect from my basic setup.

[Tony_]

Nice one Kevin - you captured some of the outer shell too.

Tony.

[cometcatcher]

Thanks Tony. Which emission does the outer shell produce? It looks green/blue in some pics I've seen although I'm not sure which pallet they used. OIII?

[RickS]

Kevin,

The outer shell is almost all Oiii but with some small areas where there is a little Ha, so it's a teal colour. I did 70+ hours on this object last year at 2760mm FL as a narrowband project from home and I feel like we are well acquainted :lol:

Cheers,
Rick.

[cometcatcher]

Thanks Rick. I saw your image of it on Astrobin. Looks like soap bubbles. Man alive 70 hours. Don't think I'll be spending that sort of time on it. Especially with 30 second subs. ;)

[RickS]

That would be Guinness Book of Records stuff :lol:

[Placidus]

Very fine work. The original is very sharp, and beautiful colours. Can see the faint outer shell most clearly in the thumbnail. Well done. Mike.

[cometcatcher]

Thanks Mike!

[Ross G]

Great capture of a difficult object Kevin.

A very nice looking photo.

Ross.

[cometcatcher]

Thanks Ross. I must revisit this one again sometime to better it, since it's my first.

[Leonardo70]

Very nice, all the best,
Leo

[Paul Haese]

This is a nice wide field shot of this emission nebula. I like your colour of the whole image. I am currently doing this object in the RC12, there will be many hours of OIII and I can see why Rick did 70 hours on it. I concur with Rick too that I can see a slight hint of the OIII shell surrounding the main nebula.

[Rod771]

Excellent result, Kevin! Beautiful star colours. :thumbsup:

[cometcatcher]

Thanks Leo, Paul and Rod!

Will be looking forward to your image Paul and seeing more of the outer shell.

[rustigsmed]

nice job Kevin, looks good, its actually quite a large target. Having a go at this also - been using yours as a reference :thumbsup:

Is that like 8400 subs? :eyepop: might need some more storage and RAM!

[cometcatcher]

I never worked it out, but um.. yeah 8400 subs for 70 hours. It would have to be done in segments, say stack 200 subs for each set and then stack the sets, but it could be done. The project would take years to complete. Shot noise may not make it worthwhile. Doing something like that, I would prefer longer subs. But here in Mackay? Ain't gonna happen.

Looking forward to yours!