Celestial hemisphere:  Northern  ·  Constellation: Ursa Major (UMa)  ·  Contains:  M 101  ·  NGC 5447  ·  NGC 5449  ·  NGC 5450  ·  NGC 5451  ·  NGC 5453  ·  NGC 5455  ·  NGC 5457  ·  NGC 5461  ·  NGC 5462  ·  NGC 5471  ·  Pinwheel galaxy
Messier 101 / NGC 5457 / Pinwheel Galaxy, Roland Barmettler
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Messier 101 / NGC 5457 / Pinwheel Galaxy

Messier 101 / NGC 5457 / Pinwheel Galaxy, Roland Barmettler
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Messier 101 / NGC 5457 / Pinwheel Galaxy

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Description

Again I had to fight with gusty winds, but this was the only clear night in sight. I only got about one third the amount of subframes, so I had to battle a lot of noise. Still I'm quite pleased with the result under those circumstances.

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Revisions

  • Messier 101 / NGC 5457 / Pinwheel Galaxy, Roland Barmettler
    Original
  • Final
    Messier 101 / NGC 5457 / Pinwheel Galaxy, Roland Barmettler
    C

C

Description: Tried more aggressive CosmeticCorrection and a different noise reduction technique in PixInsight... not shure it's really better. But it does have less noise in the brighter regions.

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Messier 101 / NGC 5457 / Pinwheel Galaxy, Roland Barmettler