Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent Nebula  ·  NGC 6888
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NGC 6888 The Crescent Nebula, patrice_so
NGC 6888 The Crescent Nebula
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NGC 6888 The Crescent Nebula

Revision title: NGC 6888 - handling low OIII signal

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NGC 6888 The Crescent Nebula, patrice_so
NGC 6888 The Crescent Nebula
Powered byPixInsight

NGC 6888 The Crescent Nebula

Revision title: NGC 6888 - handling low OIII signal

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Description

The Crescent Nebula is indeed a challenging object to image in dual narrowband, as much low Oiii arise from the outside of the object. After an initial classical HOO processing, I opted for cancelling our this weak signal. At the moment, I regret that I was not able to get this weak Oiii signal to look like anything else that a completely washed out blue. I will upload other version as soon as I get something I am happy with.

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Revisions

  • NGC 6888 The Crescent Nebula, patrice_so
    Original
  • Final
    NGC 6888 The Crescent Nebula, patrice_so
    B

B

Title: NGC 6888 - handling low OIII signal

Description: Second version with improved processing of low OIII signal

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NGC 6888 The Crescent Nebula, patrice_so