Central Cygnus Mosaic in Ha

[Knight of Clear Skies]

Probably my last deep sky target this side of Summer, taken Sunday night before full astronomical darkness.

Each panel is a single 2 minutes exposure with the Samyang 135mm f2, modded 100D and clip-in Ha filter. Stitched together in Microsoft ICE and processed in PS using Noel's actions.

This was a test run for what will hopefully be an Autumn project, to shoot each pane with more depth in RGBHa. Framing was tricky as only the brightest stars can be seen on liveview with the filter in place. I'll think about dual mounting the two DSLRs, shooting RGB at the same time would make the framing easier.

The Ha->colour version was made using Noel's actions. It gives a good idea of what each sub looked like on the camera screen, in the dark any signal really stands out.

Edited May 26, 2020 by Knight of Clear Skies

[Rodd]

On 26/05/2020 at 07:01, Knight of Clear Skies said:

The Ha->colour version was made using Noel's actions. It gives a good idea of what each sub looked like on the camera screen, in the dark any signal really stands out.

Very nice--love the naturalness.  Yes--you have captured WR-134.  If you shoot some OIII it will stand out nicely--won't take to much data to make it visible (the brightest arc).  The fainter bubble will take a lot.