Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  Crescent nebula  ·  NGC 6888  ·  The star 28Cyg  ·  The star 29Cyg
NGC 6888 Crescent Nebula RGB O-III with DSLR, omar salah
NGC 6888 Crescent Nebula RGB O-III with DSLR
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NGC 6888 Crescent Nebula RGB O-III with DSLR

NGC 6888 Crescent Nebula RGB O-III with DSLR, omar salah
NGC 6888 Crescent Nebula RGB O-III with DSLR
Powered byPixInsight

NGC 6888 Crescent Nebula RGB O-III with DSLR

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Description

this my first attemp in narrowband imaging. well, it's not a true narrowband since Orion Ultrablock filter pass about 100nm width spectum including O-III and Hβ. I combined O-III data to blue channel and green channel sepaetely.

Original: R=Red G=Green B=Blue + O-III

Revision B: R=Red G=Green + O-III B=Blue + O-III

Revision C: R=Red G=Green + O-III B=Blue + O-III (Revised)

Revision D: R=Red G=Green+ O-III B=Green+ O-III (increased Red channel in the area around the Crescent)

Comments

Revisions

  • Final
    NGC 6888 Crescent Nebula RGB O-III with DSLR, omar salah
    Original
  • NGC 6888 Crescent Nebula RGB O-III with DSLR, omar salah
    B
  • NGC 6888 Crescent Nebula RGB O-III with DSLR, omar salah
    C
  • NGC 6888 Crescent Nebula RGB O-III with DSLR, omar salah
    D

Sky plot

Sky plot

Histogram

NGC 6888 Crescent Nebula RGB O-III with DSLR, omar salah

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