Celestial hemisphere:  Northern  ·  Constellation: Vulpecula (Vul)  ·  Contains:  NGC 6823  ·  Sh2-86
NGC 6823, Colin McGill
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NGC 6823

NGC 6823, Colin McGill
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NGC 6823

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Description

Open cluster surrounded by glowing Hydrogen.

I tried several ways of trying to combine the Ha and Luminance data - I wanted the stars from the Luminance data to show off the open cluster, but the Ha data to be used to reveal the contrast in the clouds.

In the end, I used a linear interpolation - at 1, used full Luminance data, at 0, the Ha data, and a linear combination in between (so at 0.2, that would be 20% of luminance, 80% of the Ha data). I tried other methods, but ended up with artefacts.

The original is LRGB, the final is with the Ha data as well - there is a little more contrast in the Ha data than the luminance, but they do look pretty similar!

Comments

Revisions

  • NGC 6823, Colin McGill
    Original
  • Final
    NGC 6823, Colin McGill
    B

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NGC 6823, Colin McGill