Swimming Sea Dragon

[DaveS]

Or possibly the Witch's Broom.

6 hours each HII and [OIII] in 10 min subs. TS Photoline 130mm f/7 apo, ASI1600MM-cool, 3nm Astrodon filters withy significant moonlight. Processing in AstroArt, Sigma Add stacking of each 3 hour session then added. Gradient Removal, Trichromy DDP and Histogram Stretch. Saved as JPEG.

This will have to stand for the moment until I can get [SII] which may have to wait until teh moon is out of the way. I think i've pushed the levels a bit so will have another look.

[Gina]

Superb image Dave - well done

[DaveS]

Thanks Gina.

Had a go at making a synthetic green from 50% each H and O but not entirely convinced. This is just DDP and Gradient Reduction with a bit of fiddling with White Balance.

 

[geoflewis]

Wow Dave, the first image that you posted above is glorious.

[DaveS]

Thanks Geof

[carastro]

I like both, but the second one for me seems to "do it", the detail seems to be clearer - the first one is a little burnt out in places.

Carole 

[DaveS]

Thanks Carole

The first one I did a preliminary DDP to bring out the detail then used Histogram Stretch to pull up the levels, while the second just had a DDP to a lower threshold, giving a brighter but less burned out image.

[spillage]

Well done Dave. You have got allot more detail from your data then I managed in mine. There are some lovely wispy bit there.

 

Looking back at both images the second one certainly has more detail to my eye and screen.

Edited May 31, 2020 by spillage

[DaveS]

Thanks Mark.

Revealing the faint wispy bits while holding back the main bright structure is a real test. Thank heavens for DDP, I'd never do it with Histogram Stretch alone.

[MarkAR]

Well done Dave, it's a superb Broom.

[bob-c]

A smashing image Dave.

Bob.

[rodrigol]

Spectacular! Thanks for sharing 🙂