Propeller nebula in Cygnus

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The Propeller Nebula seems to have been missed in many catalogs. While seeming relatively bright in widefield images, the fine detail is deceptively hard to bring out.

DWB111, or the “Propeller Nebula” is listed in the DWB catalog, a somewhat lesser-known document developed by H. R. Dickel, H.Wendker and J. H. Bieritz cataloging 193 distinct objects as part of their study of H-alpha emission nebula in the Cygnus X region of the sky. This nebula is also listed as Simeis 57 and MRSL 479.

Imaging telescopes or lenses: GSO Newton 8″ f/5
Imaging cameras: Canon EOS 350D / No filter
Mounts: Sky-Watcher EQ6 Syntreck
Guiding telescopes or lenses: GSO Viewfinder 8X50
Guiding cameras: Orion SSAG
Focal reducers: TS Koma Korrektor
Software: Iris, photoshop
Filters: Astronomik CLS CCD Filter
Dates: June 5, 2013
Frames: 37×480″
Integration: 4.9 hours

Author: Fredéric Segato

AstroPhotography of the day by SPONLI
6 Abril 2014