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  2. Wolf–Rayet nebula - Wikipedia

    en.wikipedia.org/wiki/WolfRayet_nebula

    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.

  3. Wolf–Rayet star - Wikipedia

    en.wikipedia.org/wiki/WolfRayet_star

    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 ...

  4. WR 140 - Wikipedia

    en.wikipedia.org/wiki/WR_140

    WR 140 is a visually moderately bright WolfRayet star placed within the spectroscopic binary star, SBC9 1232, [7] whose primary star is an evolved spectral class O4–5 star. [7] It is located in the constellation of Cygnus , lying in the sky at the centre of the triangle formed by Deneb , γ Cygni and δ Cygni .

  5. List of Wolf-Rayet stars - Wikipedia

    en.wikipedia.org/wiki/List_of_Wolf-Rayet_stars

    This is a list of Wolf-Rayet stars, in order of their distance from Earth ... It is the central star of Abell 48 Planetary Nebula. WR 24 (HD 93131) 14,000: 1: WN6ha-w ...

  6. WR 134 - Wikipedia

    en.wikipedia.org/wiki/WR_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.

  7. WR 124 - Wikipedia

    en.wikipedia.org/wiki/WR_124

    WR 124 is a WolfRayet star in the constellation of Sagitta surrounded by a ring nebula of expelled material known as M1-67. [9] It is one of the fastest runaway stars in the Milky Way with a radial velocity around 200 km/s. It was discovered by Paul W. Merrill in 1938, identified as a high-velocity WolfRayet star. [10]

  8. WR 135 - Wikipedia

    en.wikipedia.org/wiki/WR_135

    WR 135 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. It is just over four times the radius of the sun, but due to a temperature of 63,000 K it is 250,000 times as luminous as the sun.

  9. M4-18 - Wikipedia

    en.wikipedia.org/wiki/M4-18

    The nebula extends about 0.06 parsecs (0.20 light-years) from its center. [5] As early as 1974, the central star was known to be among the coolest carbon -sequence (type WC) Wolf-Rayet stars. [ 12 ] The nebula has a mass of 0.08 M ☉ [ 7 ] and an electron temperature, that is the average kinetic energy of electrons within the plasma , of 8,160 ...

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