Fairly deep helix in colour - first attempt

[Stevec35]

Hi to all

I eventually got enough data to justify posting a colour version of the helix. I was looking at getting some OIII but looking at the vast amount that would be necessary I'm going off that idea. This version has synthetic luminance. I might get some real luminance tonight to see if it makes any difference.

Cheers

Steve

http://members.pcug.org.au/~stevec/ngc7293_STL6303_RC.htm

[Paul Haese]

Not sure about the colour (it maybe a little too red???) but the Ha data is still stunning to look at. Perhaps try for a hubble palette. OIII data would really set that off.

[Stevec35]

Thanks for the comment and suggestion Paul but I don't think I will be doing Hubble palette. Based on comments from Martin I would need at least 25 hours SII and I don't have the time to do that. Maybe a bi-colour but I would still need a lot of OIII, probably at least as much as I have Ha. Time to move on to something else I think.

And yes, it probably is a little too red.

Cheers

Steve

[Martin Pugh]

Hey Steve
agree the Ha looks really good as it did when you first posted it, but I also agree that you could dial that red back a tad.

It will not take much OIII to get the core of the Helix - there is a strong OIII emission there, but anything beyond that is going to take significant exposure.

cheers
Martin

[Stevec35]

What's not much for you though? 10 hours? <g>. Okay I'll give it a go if I can complete the other image I'm currently working on. At least you can do OIII when there's a bit of moon about.

[Martin Pugh]

SNR, SNR my friend.

and you certainly can do OIII with a moon about, especially when the filter you are using has a bandpass of 3nm.

cheers
Martin

[DJT]

Currently running some Oiii on this nebula using a Canon and I am picking up plenty on 10 minute subs. Just going to need quite a few to get some of the depth and probably longer subs but haven't the patience for 31 hours.

I like the red by the way.. Great image

[RickS]

I vote for adding OIII too, Steve :D Should be stunning!

[strongmanmike]

Aussie astroimagers chant: "Helix, Helix, Helix, OIII, OIII, OIII" :P

The OIII structure (http://www.pbase.com/strongmanmike2002/image/139592517/original) is pretty interesting, have a go ya mug :thumbsup:

I prefer the Ha only version at this stage.

Mike

[Stevec35]

Okay guys - you talked me into it. BTW my OIII filter is 5nm.

Cheers

Steve

[sjastro]

Very nice Helix Steve.

Regards

Steven

[atalas]

Not thrilled about the color but the detail is still great Steve!nice work.

[Stevec35]

Thanks Louie. Stay tuned - better colour is coming.



Thanks Steven

[Ross G]

Great looking Helix photos Steve.

I love the monochrome shot.

Ross.

[Stevec35]

Thanks Ross

[Peter Ward]

I think the helix needs focal length and deep exposures to really show off well.

I really like the resolution of your version Steve...well done:thumbsup:

[Stevec35]

Thanks Peter