Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)
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Simeis 57 (DWB-111 & DWB-119) The Propeller Nebula, reglogge
Simeis 57 (DWB-111 & DWB-119) The Propeller Nebula
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Simeis 57 (DWB-111 & DWB-119) The Propeller Nebula

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Simeis 57 (DWB-111 & DWB-119) The Propeller Nebula, reglogge
Simeis 57 (DWB-111 & DWB-119) The Propeller Nebula
Powered byPixInsight

Simeis 57 (DWB-111 & DWB-119) The Propeller Nebula

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Description

This beautiful emission nebula is located in the constellation of Cygnus. It features pretty strong signals in all three commonly used narrowband wavelengths Ha, OIII and SII, with Ha as usual being the dominant one. I tried to find a color representation that remains strong in the dominant reddish color but also accentuates the weakest of the three channels, OIII. For OIII I chose a turquoise coloring, since that is closer to the natural color of this emission line than the often used deep blue. All subs were taken from my city balcony under full to half moon conditions. I removed the stars from the narrowband channels and replaced them with RGB stars.

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Simeis 57 (DWB-111 & DWB-119) The Propeller Nebula, reglogge