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Wolf-Rayet 134 (WR 134)

Category:Deep Sky
Published:
2676
Wolf-Rayet 134 (WR 134)
Resolution:
2688x2172 px
File size:
5537 KB

Photo description / processing

Wolf-Rayet 134 (WR 134) is a variable Wolf-Rayet star located around 6,000 light years away from Earth in the constellation of Cygnus, surrounded by a faint bubble nebula blown by the intense radiation and fast wind from the star. In my image, the Wolf-Rayet star WR 134 is visible in the center of the gas bubble as the brightest white star. Wolf-Rayet stars are extremely hot, bright, massive stars, and one of the rarest classes of stars known. As of 2018, only 154 had been identified in the Milky Way. Some produce spectacular nebula, e.g. the Crescent nebula (NGC 6888), thanks to their strong stellar winds, intense ultraviolet emissions, and clouds of gasses that they shed in earlier stages of their relatively brief lives. Wolf-Rayet nebula around the Wolf-Rayet star WR 134 was first noticed in 1971. The nebula is embedded in the large nebula complex of Sh2-109, so the surrounding area is also filled with lots of emission nebulosity. This image taken over several nights in October 2020. R-channel - 27 x 150 sec. bin 1x1; G-channel - 27 x 150 sec. bin 1x1; B-channel - 27 x 150 sec. bin 1x1; Ha- 36 x 600 sec. bin 2x2; OIII- 62 x 600 sec. bin 2x2. Total integration time about 19:42 hours.

Technical information

Telescope/Lens
Celestron CPC 800 GPS XLT
Camera
Starlight Xpress Trius SX-694
Mount
Equatorial Wedge
Guide Scope
Baader Guide Scope 61/250
Guide Camera
ZWO ASI120MM
Accessories
Starizona Night Owl 0.4x Reducer, Astrodon LRGB E-Series Gen. 2 Filter Set, Astrodon 5nm H-alpha Filter, Astrodon 3nm OIII Filter
Software
MaxIm DL, PHD2, Pixinsight, StarTools, Adobe Photoshop, Zoner Photo Studio 14
Location
Chervonograd, Ukraine

Light pollution

Yellow, Bortle 5 zone

Date taken

Exposure

  • 27 × 150″ · ISO/Gain: 0 · Astrodon R ·
  • 27 × 150″ · ISO/Gain: 0 · Astrodon G ·
  • 27 × 150″ · ISO/Gain: 0 · Astrodon B ·
  • 36 × 600″ · ISO/Gain: 0 · Astrodon Ha 5nm ·
  • 62 × 600″ · ISO/Gain: 0 · Astrodon OIII 3nm ·

Total exposure: 19 h 43 m

Comments

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