Celestial hemisphere:  Northern  ·  Constellation: Cassiopeia (Cas)  ·  Contains:  IC 1795  ·  IC 1805  ·  NGC 896  ·  PGC 138524  ·  PGC 2797009  ·  PGC 2797013  ·  PGC 2797026  ·  PGC 2797052  ·  PGC 2797053  ·  Sh2-190
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Heart Nebula IC1805 v2021, matthew.maclean
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Heart Nebula IC1805 v2021

Getting plate-solving status, please wait...
Heart Nebula IC1805 v2021, matthew.maclean
Powered byPixInsight

Heart Nebula IC1805 v2021

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Description

I got a night with fairly good skies as the summer heat and haze slowly dissipates to re-visit one of my favorite objects in the sky. I've opted for using the L-Extreme on this one which does give really nice contrast. I still see some minor halo-ing on some of the brighter stars which became evident on splitting off the star layer with StarNet. I had to play a few games with Morphological Transformation and CloneStamp to clean up, but I wanted to have muted stars here in this image anyway so the nebula can be the star of the show.

It is certainly not a perfect result, but I like it. It's a definite improvement over my last year's attempt, https://astrob.in/irfobo/C/, which was acquired using an old Ha filter that wasn't the greatest. And I think there's a little room for further improvement next year if I get the chance.

I've also done some playing with false-color dual-band to narrowband renditions that I am uploading as revisions. Honestly, the narrowband coloring really is endless - I generated about one hundred different versions and finally decided I just had to stop. The SHO one looks pretty good and I think highlights some of the interior structures well. The HOO one I made by re-balancing the channels with CurvesTransformation to get more of the steel-gray color blend. I'm less sure I like that one yet, but it's interesting.

Comments

Revisions

  • Final
    Heart Nebula IC1805 v2021, matthew.maclean
    Original
  • Heart Nebula IC1805 v2021, matthew.maclean
    B
  • Heart Nebula IC1805 v2021, matthew.maclean
    C

B

Description: dual-band to SHO coloring

Uploaded: ...

C

Description: dual-band to HOO coloring

Uploaded: ...

Sky plot

Sky plot

Histogram

Heart Nebula IC1805 v2021, matthew.maclean