Celestial hemisphere:  Northern  ·  Constellation: Cygnus (Cyg)  ·  Contains:  HD192731  ·  HD192868  ·  HD192911
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The Propeller Nebula, Simeis 57, Mark L Mitchell
The Propeller Nebula, Simeis 57, Mark L Mitchell

The Propeller Nebula, Simeis 57

Getting plate-solving status, please wait...
The Propeller Nebula, Simeis 57, Mark L Mitchell
The Propeller Nebula, Simeis 57, Mark L Mitchell

The Propeller Nebula, Simeis 57

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Description

7.5h of SHO data. I have many versions - this is without RGB stars, 50:50 simple SHO and ForaxX formula. The mouse-over image uses the Crazy Panda formula.
I got both from Lefty's SHO astrophotography tutorial on YouTube.
See the 2002 paper by Israel, F et al. on this area in the constellation Cygnus: https://www.aanda.org/articles/aa/abs/2003/06/aa3181/aa3181.html

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  • The Propeller Nebula, Simeis 57, Mark L Mitchell
    Original
  • The Propeller Nebula, Simeis 57, Mark L Mitchell
    C
  • Final
    The Propeller Nebula, Simeis 57, Mark L Mitchell
    D

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The Propeller Nebula, Simeis 57, Mark L Mitchell

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The refractors!