M17

[CoolhandJo (Paul)]

The Swan (or Omega) Nebula M17 is a great target for the ED80 at F7.5 600mm Focal length. Taken on a HEQ5 pro with ASI 533 MCpro. I did 150 x 240sec.

I processed in Pixinsight and photoshop. I'm slowly getting my guiding sorted on the new mount (tightened the backlash on both axis). Not 100% happy yet but ordered an OAG which also may help. I have a belt mod kit ready and waiting as my last line of defense! I only put a Astro tech Flattener and not a reducer because I wanted to get close. That means I need to guide at 0.56 RMS on average! Ill add some Sii to this image to tease out the detail more.

Astrobin https://astrob.in/nwv5qf/B/

[PKay (Peter)]

Hi Paul

Not a bad effort however IMO you need to re process.

Most of the stars have rings probably from the sharpening or deconvolution.

Well done

[CoolhandJo (Paul)]

Here is a SHO with added Sii

High res here https://astrob.in/i82tz6/0/

[PKay (Peter)]

Hi Paul.

Quite an improvement in your processing.

Still artefacts visible.

Getting better!