Heart and Soul Nebulae - Widefield - WIP

[Gina]

Had a hard drive failure on my Linux Mint desktop and that contained a lot of my astro data but I have backups and intermediate process files on SSD so I'm seeing what I can do.  Firstly, here is the Heart & Soul in Ha.  Looks like I have OIII and SII as well so hoping to make a colour version.  Equipment in signature but I'll have to check which lens I used - I think it was the 135mm f2.5.  This is integrated image stretched with Curves Transformation.  All image processing in PixInsight.

[Gina]

Here's the stretched OIII.

[Gina]

And stretched SII.

[theo]

Very nice Gina and a great FOV. Glad to see you had your data backed up!!

Pete

[Gina]

Thanks Pete   Certainly glad I've got this set as these are among my favourite DSOs.

[James]

Nice to see there is a little SII in there  How long were your subs Gina?  I'm working on the same target and am debating just how long an exposure I'll need for SII!!

James

[Gina]

I'll have to look back through my posts for the gain setting but I think it was either 440 or 500.  My records of astro capture settings were in a text file on the broken HD All were captured with a camera temperature of -30°C.  These are the number of subs and exposures for each filter.  All Astrodon 3nm 1.25".

1. Ha  - 418 x  60s
2. OIII - 297 x  60s
3. SII   -  96 x 120s

[James]

Thanks Gina - I'm using a lower gain so will be doing slightly longer subs

 

[Gina]

Yes, I saw that   Both ways seem to give pretty good results.

[Allinthehead]

Nice one Gina.

[gnomus]

Grat stuff Gina.  But when are we seeing the combo?

[Gina]

Thanks   Probably tomorrow.  Going back through my posts I find I did try a while ago but didn't do very well so a fresh try is indicated anyway.  I also found the capture settings.  Lens was the 135mm f2.5 and gain of 440.  Temp of -30°C as I said above.

[Gina]

Going by the posts in my thread in the "Imaging - Discussion" forum I think there's plenty I can work on from the backups

[laudropb]

Very nice image Gina.

[Barry-Wilson]

Looking very good Gina - looking forward to seeing the HST image.

[Gina]

I found the information on my captures, the gain was 440.  Been working towards colour images both bi-colour and tri-colour though with so little SII the tri-colour was a problem.  Anyway here are my tries.  Bi-colour using R=Ha, G=20%Ha+80%OIII and B=OIII and tri-colour R=Ha, G=SII and B=OIII - the only combination that gave any sensible colour.  If I can capture more SII data I'll have another go at tri-colour.

Here are the bi-colour and tri-colour images stretched with curves in PI - in fact all processing was done in PI.  These are full resolution images but saved in PNG format for upload here.  When I finally get gigabit fibre optic broadband connected right into the house I'll resurrect my web site and make the XISF files available.