M27 6 hr HOO

[DaveS]

From the last two nights. Had to dump 3 hours of HII as it was just out of focus, which meant I didn't get the chance to capture th [NII] that I wanted so had to make do with just HII and [OIII], 3 hours of each in 10 min subs. Made a synthetic Green from 70% O and 30% H. Trichromy then DDP and a Histogram Stretch to pull out what little outer shell there was, resulting in the coer being a touch over exxposed.

I'll post a more sensible version then I do it.

[DaveS]

Here we go, a more conventional HOO with a less extreme stretch after DDP

Edited September 21, 2019 by DaveS
Added photo, dur...

[MartinFransson]

If you apply layer masks in Photoshop or a mask in Pixinsight I think you could get both the core and the outer shell looking good. That´s some pretty darn good data you have there 😀

[DaveS]

Thanks Martin. I don't have PS or PI. (Though I have plans for the latter). I do have GIMP though so may have a look to see what i can do. Layer masks are a but if a mystery to me as yet, do everything in AA5.

[MartinFransson]

52 minutes ago, DaveS said:

Thanks Martin. I don't have PS or PI. (Though I have plans for the latter). I do have GIMP though so may have a look to see what i can do. Layer masks are a but if a mystery to me as yet, do everything in AA5.

I think GIMP handles layer masks. Search for Youtube tutorials on it. It really opens up a whole new tool box!

[bob-c]

A very good attempt Dave, well done. looks very promising .

Bob.