NGC7293 in HaRGB

[DJT]

The weather has been pretty poor recently so have taken the opportunity to try and get to grips with blending HA data in PI.

NGC7293 Helix in HARGB (http://astrob.in/137512/C/)

6 hours of RGB data were blended with the 9 hours of Ha that I posted recently.

Still working through star colour and star masks, but I did enjoy learning how curves can be used with such effect on the final processed image

No stars were deconvoluted during the processing of this image, in fact no sharpening was used at all. Maybe it needs it but if you stand back a bit its not so bad.

I am though intrigued as to why my iPad eats Ha when viewing through astrobin. Anyone else noticed this? It clips the data quite hard. I work in 32bit FITS files with embedded ICC and according to PI, the colour profile is sRGB.

Thanks for looking

[multiweb]

Not bad. Interesting colors. :thumbsup:

[DJT]

Thanks Marc. I was struggling with getting rid of the salmon colour after blending so tinkered and found a combination I quite liked. Suspect it's not to all tastes but such is life. Thanks for looking.

[RickS]

An interesting experiment, David. A bit different but it turned out OK.

I think I can shed some light on your iPad problem... Astrobin doesn't include an ICC Profile in images it displays, even if the image you uploaded has one. I sent them a message a while back but nobody responded. I'm hoping they noted it and plan to fix it one day. Given the purpose of the site I would hope that accurate colour would be considered important!

Cheers,
Rick.

[DJT]

Thanks Rick. I might drop Salvatore a line as well. I seem to waste a fair bit of time comparing between ipad and pc when processing (been burnt a few times) and given the volume of smart device users out there I agree its something they should have a look at.

[RickS]

That would be good, David. If a few people start agitating it might get fixed.