Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
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Simeis 57 (Propeller Nebula), Jenafan
Simeis 57 (Propeller Nebula), Jenafan

Simeis 57 (Propeller Nebula)

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Simeis 57 (Propeller Nebula), Jenafan
Simeis 57 (Propeller Nebula), Jenafan

Simeis 57 (Propeller Nebula)

Equipment

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Acquisition details

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Description

The Propeller nebula was shot with monochrome ASI1600mmc using H-S-O and R-G-B filters.

Mixture done with self written PI script NarrowbandHueCombination (repository: https://pi.juergen-baetz.de/repository/):
"trueish" color mapping: Ha 0°, SII 45°, OIII 200° color hue
SHO mapping: SII 0°, Ha 120°, OIII 200° color hue (then final processing including color adaption).
The stars were extracted from RGB composit and screen blended in both picture variants.

Comments

Revisions

  • Final
    Simeis 57 (Propeller Nebula), Jenafan
    Original
    Simeis 57 (Propeller Nebula), Jenafan
    B

B

Title: SHO version

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Sky plot

Sky plot

Histogram

Simeis 57 (Propeller Nebula), Jenafan