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NGC 2359 (also known as Thor's Helmet) is an emission nebula [3] in the constellation Canis Major. The nebula is approximately 3,670 parsecs (11.96 thousand light years) away and 30 light-years in size. The central star is the Wolf-Rayet star WR7, an extremely hot star thought to be in a brief pre-supernova stage of evolution.
Nebula Median distance Stars in system Spectral type Apparent magnitude (V) Comments and references Gamma² Velorum (WR 11/Suhail al Muhlif/Regor) 1096 +26 −23: 2: WC8: 1.83: The Closest Wolf-Rayet star to Earth. HD 45166: 3,232: 2: qWR: 9.88: The primary of HD 45166 is currently the only known example of a qWR star. HD 107969: 3,377.2±153.6 ...
It is located 1.65 billion light years away from Earth and is a Seyfert galaxy and an ultraluminous infrared galaxy. [1] IRAS 01003-2238 is also classified as a Wolf-Rayet galaxy , making the object one of the most distant known.
AB7 is one of the highest-excitation nebulae in the Magellanic Clouds, two satellite galaxies of the Milky Way. A Wolf-Rayet nebula is a type of nebula created from stellar winds expelled by Wolf-Rayet stars. Wolf-Rayet stars are very hot, highly luminous, and rapidly evolving massive stars that are fusing helium or heavier elements in their cores.
WR 25 (HD 93162) is a binary star system in the turbulent star-forming region of the Carina Nebula, about 6,800 light-years from Earth. It contains a Wolf-Rayet star and a hot luminous companion and is a member of the Trumpler 16 cluster. The name comes from the Catalogue of Galactic Wolf–Rayet Stars.
WR 133 is a visually moderately bright Wolf-Rayet star.It is a spectroscopic binary system containing a Wolf-Rayet primary and a class O supergiant secondary. It is in the constellation of Cygnus, lying in the sky at the centre of the triangle formed by β and γ Cygni, near η Cygni.
VFTS 682 is a Wolf–Rayet star in the Large Magellanic Cloud.It is located over 29 parsecs (95 ly) north-east of the massive cluster R136 in the Tarantula Nebula. [5] It is 138 times the mass of the Sun and 3.2 million times more luminous, which makes it one of the most massive and most luminous stars known.
WR 136, a WN6 star where the atmosphere shed during the red supergiant phase has been shocked by the hot, fast WR winds to form a visible bubble nebula. In 1867, using the 40 cm Foucault telescope at the Paris Observatory, astronomers Charles Wolf and Georges Rayet [1] discovered three stars in the constellation Cygnus (HD 191765, HD 192103 and HD 192641, now designated as WR 134, WR 135, and ...