Simeis 57 Propeller Nebula, 14×4 min

 

With my usual setup, the N 150/750, Baader MPCC Mark III, Canon 1100D mod, HEQ5, autoguided, I imaged the Propeller Nebula from the Curmături cabin. I acquired 14×4 min ISO 1600 light that turned out to be usable, the rest of the frames suffering from guiding errors. The object itself is close to γ Cyg, Sadr, and it is part of the huge nebulous complex in the area.

Simeis 57 [H II nebula in Cyg] Propeller Nebula, by location: DWB 111, Simeis 57 ø20′ [simbad] 750mm

the imaged region’s context from the DSS colored data (see my photo planner), the yellow “L” marks 1/2 deg, the diameter of the full moon

The nebula’s context

raw

raw

stack

stack

stage

stage

almost final picture

almost final picture

final

final

 

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