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Astrophotography and Sketching >> CCD Imaging & Processing

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astrovienna
Carpal Tunnel


Reged: 12/04/06

Loc: The NoVa White Zone
Do It Yourself Jellyfish (IC443) Data new
      #5719669 - 03/07/13 11:49 PM Attachment (32 downloads)

This project started in November and didn't finish until February, as most of the clear nights we've had this winter have been too windy for imaging. Tonight, for example. This is 18 hours via a CPC1100/SXVR-H694. Full details are with the image on the pBase site.

http://www.pbase.com/skybox/image/149029455

I'm still getting narrowband figured out, and this one seems a bit garish to me, maybe because the SII signal is so strong. I'd be very interested in seeing your processing of the data. For anyone who wants to try it, a zip file of the calibrated stacks is here:

https://www.dropbox.com/s/2410vlr68c8ifpp/IC443RawStacks.zip

Kevin

Edited by astrovienna (03/08/13 03:54 PM)


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rigel123
Postmaster
*****

Reged: 06/29/09

Loc: SW Ohio
Re: Hubble palette IC443, or do it yourself new [Re: astrovienna]
      #5720735 - 03/08/13 03:17 PM

Looks pretty good to me!

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Sonya
sage
*****

Reged: 06/27/08

Loc: Space City
Re: Hubble palette IC443, or do it yourself new [Re: rigel123]
      #5720773 - 03/08/13 04:07 PM

Looks like spun gold, very nice...

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cclark
member


Reged: 07/29/08

Re: Hubble palette IC443, or do it yourself new [Re: Sonya]
      #5720844 - 03/08/13 05:02 PM Attachment (15 downloads)

I am still new to NB processing, but I gave it a try. You have some really great data! Thanks for posting and letting me get some experience.


Chris


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DarkStarAstro
Pooh-Bah
*****

Reged: 02/22/13

Loc: Southeastern US
Re: Hubble palette IC443, or do it yourself new [Re: cclark]
      #5721587 - 03/09/13 03:49 AM

The "smokey" look this nebula has was very well maintained, looks good!

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Peter in Reno
Postmaster
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Reged: 07/15/08

Loc: Reno, NV
Re: Hubble palette IC443, or do it yourself new [Re: DarkStarAstro]
      #5722588 - 03/09/13 04:24 PM Attachment (16 downloads)

Hi Kevin,

Here's my quick process of your data. It's probably a little over-processed since I have no idea what this DSO is supposed to look like. I have never seen this DSO before.

You have fantastic data and it was not too difficult to process it. It was processed entirely with PixInsight.

Peter


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Peter in Reno
Postmaster
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Reged: 07/15/08

Loc: Reno, NV
Re: Hubble palette IC443, or do it yourself new [Re: Peter in Reno]
      #5722630 - 03/09/13 04:45 PM Attachment (10 downloads)

Here is my second try but less over-processed. I didn't do any noise reduction which can cause over smoothing. Your image has good enough data not to do noise reduction.

Peter


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Dr Benway
professor emeritus
*****

Reged: 03/27/08

Loc: Abilene, TX
Re: Hubble palette IC443, or do it yourself new [Re: Peter in Reno]
      #5722805 - 03/09/13 06:45 PM Attachment (12 downloads)

HST Palette using Annie's Actions Hubble Palette Creation. Processed in PixInsight and Photoshop CS6.

John


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astrovienna
Carpal Tunnel


Reged: 12/04/06

Loc: The NoVa White Zone
Re: Hubble palette IC443, or do it yourself new [Re: Dr Benway]
      #5723852 - 03/10/13 12:52 PM

Thanks, everyone. It's always very interesting to see how other people process the data. As for me, I used the standard ESO Colour Composite action for the color merge, and as I'm sure you can guess I stretched the curves on the OIII/blue pretty hard. I also added one part of Bob Franke's gold-turquoise action to shift the green to slightly orange-gold. Then I used JPM's StarRemove action to create a starless layer, subtracted that from the original to yield a stars-only image that I used to mask out the stars prior to deconvolution of the nebulosity with AstraImage. All in all a pretty good learning experience.

Peter, despite 40 years in this hobby I never heard of this target before I began imaging. Seriously, the Jellyfish Nebula?

Kevin

Edited by astrovienna (03/10/13 12:54 PM)


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Peter in Reno
Postmaster
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Reged: 07/15/08

Loc: Reno, NV
Re: Hubble palette IC443, or do it yourself new [Re: astrovienna]
      #5723885 - 03/10/13 01:12 PM

Why didn't you say it was a Jellyfish Nebula in the first place?

I Googled for sample photos of Jellyfish Nebula and it looks like you only got half of it which is probably why I didn't recognize it.

http://bf-astro.com/ic443sho.htm

Peter


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neptun2
scholastic sledgehammer


Reged: 03/04/07

Loc: Bulgaria
Re: Hubble palette IC443, or do it yourself new [Re: Peter in Reno]
      #5763906 - 03/29/13 09:04 AM

Here is also attempt from me to construct pseudo RGB using following method:

R = 100%Ha + 33%SII , G=OIII , B= 100% OIII + 33%Ha



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steveyzh
super member


Reged: 02/20/11

Re: Do It Yourself Jellyfish (IC443) Data new [Re: astrovienna]
      #5765408 - 03/29/13 05:50 PM Attachment (6 downloads)

Hi Kevin,
Thanks for sharing. The data was good. And this is my result.

Steve

Edited by steveyzh (03/29/13 10:02 PM)


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steveyzh
super member


Reged: 02/20/11

Re: Do It Yourself Jellyfish (IC443) Data [Re: steveyzh]
      #5765509 - 03/29/13 06:38 PM Attachment (8 downloads)

Here is another version, following J-P Tone mapping processing. Thanks.
Steve


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Harel_Boren
Vendor-The Boren-Simon PowerNewt Astrograph


Reged: 03/15/09

Loc: Israel
Re: Do It Yourself Jellyfish (IC443) Data new [Re: steveyzh]
      #5766218 - 03/30/13 07:00 AM

Lovely image - in all versions!!!
Cheers,
Harel


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