Propeller Nebula Simeis 57 (DWB 111)

Simeis 57, also known as the Propeller Nebula, is a captivating celestial object located in the constellation Cygnus.

 

It is part of the vast Cygnus X molecular cloud, situated approximately 4,600 light-years away from our Solar System.

This intriguing nebula resembles a spinning propeller, with opposing arcs of reddish light extending symmetrically from a common center.

Its unusual appearance has earned it nicknames like the Garden Sprinkler Nebula.

While challenging to observe visually due to its red emissions, astrophotographers have captured its beauty through long integration times.

 

With an impressive integration time of 96 hours at f3.3, the propeller shape within the nebula appears more diffuse compared to the surrounding regions. However, this extended deep capture reveals new intricate details around this renowned celestial feature.

 

Equipment

 

Imaging Telescopes Or Lenses

Takahashi Epsilon-160ED

Imaging Cameras

QHYCCD QHY294M Pro

Mounts

Sky-Watcher EQ6-R Pro

Filters

Baader Blue (CMOS-Optimized) 36 mm · Baader Green (CMOS-Optimized) 36 mm · Baader H-alpha 6.5nm (CMOS-Optimized) 36 mm · Baader O-III 6.5nm (CMOS-Optimized) 36 mm · Baader Red (CMOS-Optimized) 36 mm · Baader S-II 6.5nm (CMOS-Optimized) 36 mm

Accessories

Pegasus Astro FocusCube2 · Pegasus Astro Powerbox Advance Gen2 · QHYCCD QHYCFW3-M-US · TS-Optics Off-axis guider 9mm (TSOAG9G2) ×

Software

Starkeeper Voyager Custom Array

Guiding Cameras

ZWO ASI290MM Mini

 

Acquisition details

 

Dates:

July 12, 2023

Aug. 11, 2023

Aug. 20, 2023

Oct. 12, 2023

Nov. 6 - 7, 2023

Frames:

Baader Blue (CMOS-Optimized) 36 mm: 120×60″(2h)

Baader Green (CMOS-Optimized) 36 mm: 120×60″(2h)

Baader H-alpha 6.5nm (CMOS-Optimized) 36 mm: 180×600″(30h)

Baader O-III 6.5nm (CMOS-Optimized) 36 mm: 180×600″(30h)

Baader Red (CMOS-Optimized) 36 mm: 120×60″(2h)

Baader S-II 6.5nm (CMOS-Optimized) 36 mm: 180×600″(30h)

Integration:

96h

Avg. Moon age:

21.33 days

Avg. Moon phase:

22.53%

 

RA center: 20h16m20s.97

 

DEC center: +43°42′51″.3

 

Pixel scale: 2.694 arcsec/pixel

 

Orientation: -4.006 degrees

 

Field radius: 1.239 degrees

 

WCS transformation: thin plate spline

 

Resolution: 2748x1845

 

File size: 8.2 MB

 

Locations: AAS Montsec, Àger, Lleida, Spain

 

Data source: Own remote observatory

 

Remote source: Non-commercial independent facility

Done