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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 ...
Wolf–Rayet (WR) can mean: Wolf–Rayet star, a type of evolved, massive star; Wolf–Rayet galaxy, which contains large numbers of Wolf–Rayet stars;
WR 140 is a visually moderately bright Wolf–Rayet star placed within the spectroscopic binary star, SBC9 1232, [7] whose primary star is an evolved spectral class O4–5 star. [7]
WR 1 is a Wolf-Rayet star located around 10,300 light years away from Earth in the constellation of Cassiopeia.It is only slightly more than twice the size of the sun, but due to a temperature over 100,000 K it is over 758,000 times as luminous as the sun.
The spectrum contains lines of hydrogen and is intermediate between a classical WN (Wolf-Rayet) star and an O-type supergiant. This led to early reports that it was a binary, for example a WN7 star plus an O7 star. [9] It has also been described as WN7 + abs [10] (meaning a Wolf-Rayet star with absorption lines of unknown origin) and WN6ha. [11]
AB7 was first listed by Azzopardi and Vigneau as a probable member of the Small Magellanic Cloud and noted to be a Wolf Rayet star. It was numbered 336a, the "a" meaning it is an addition between 336 and 337 of the existing catalogue. The catalogue stars are referred to with the acronym Az or AzV, so AB7 is also called AzV 336a. A close ...
The primary star is a Wolf–Rayet star (abbreviated as WR), which has a B0.5 main sequence star in close orbit and another more distant fainter companion. The WR star is surrounded by a distinctive spiral Wolf–Rayet nebula, often referred to as a pinwheel nebula. The rotational axis of the binary system, and likely of the two closest stars ...
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± ...