M16 in Ha

ozstronomer (Geoff) · #1 11-10-2013, 08:50 PM

I wanted to try out the HDRComposition feature in Pixinsight so this is a combination of 24 x 5min and 12 x 10min subs.

I used my William Optics TMB 110 and Moravian 8300 camera.

Captured with Sequence Generator pro and processed with Pixinsight 1.8

I have included a crop of the Pillars as well.

Thanks for looking

RickS (Rick) · #2 11-10-2013, 09:38 PM

Hi Geoff,

You probably need to go much less than 5 mins on the short exposures to avoid saturation of the bright stars. Try a small preview around a couple of brighter stars and run the 3d plot script. If they have flat tops then they were saturated.

You're getting decent detail for a small scope. The stars look a bit hard like they've been oversharpened?

Cheers,
Rick.

ozstronomer (Geoff) · #3 11-10-2013, 10:17 PM

Thanks Rick, Ill try out the 3D plot. The stars do look a bit crunchy, the original isn't as obvious, maybe the compression to 200k has had some effect?

Geoff

RickS (Rick) · #4 11-10-2013, 10:23 PM

Yes, there's a good chance it is the IIS image compression, Geoff!