Propeller Nebula (DBW 111)

Propeller Nebula SHO Propeller Nebula Ha
Object: Propeller Nebula (DBW 111)
Date: Ha: June 17 to 19, 2015SII: June 19 to 22, 2015

OIII: June 22 to 23, 2015

Equipment: Telescope: Takahashi Sky 90II with F/4.5 reducer/flattenerCamera: SBIG ST-10XME w/ CFW10 (Astrodon 3nm Ha, SII, OIII)Autoguider: SBIG Remote Guide HeadGuidescope: 100mm efinderMount: Losmandy G11/Gemini 2 GoTo
Exposure Info: Ha: 11 x 20 minsSII: 10 x 20 minsOIII: 10 x 20 minsTotal SHO exposure: 10 hours 20 mins
Processing: Maxim DL 5.23, Photoshop CS6,
Notes: The Propeller Nebula, is an emission nebula in the constellation Cygnus. Astronomers seem to have more questions than answers, regarding this nebula. The origin of the peculiar structure is still completely unknown. The nebula’s distance and source of excitation are also undetermined.

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