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  2. Wolf–Rayet star - Wikipedia

    Wolf–Rayet stars, often abbreviated as WR stars, are a rare heterogeneous set of stars with unusual spectra showing prominent broad emission lines of ionised helium and highly ionised nitrogen or carbon.

  3. Wolf-Rayets are hot, massive, bright stars - EarthSky

    Aug 3, 2018 · WR124 is a Wolf-Rayet star 8,000 light-years from Earth. This Hubble Space Telescope image shows hot clumps of gas, each weighing 30 times more than Earth, being blown off into space at nearly ...

  4. NASA’s Webb Telescope Captures Rarely Seen Prelude to …

    Mar 14, 2023 · The rare sight of a Wolf-Rayet star – among the most luminous, most massive, and most briefly detectable stars known – was one of the first observations made by NASA’s James Webb Space Telescope in June 2022. Webb shows the star, WR 124, in unprecedented detail with its powerful infrared instruments.

  5. Wolf-Rayet star | Massive, Hot, Luminous | Britannica

    Wolf-Rayet star, any of a class of extremely hot, white stars having peculiar spectra thought to indicate either great turbulence within the star or a steady, voluminous ejection of material. A typical Wolf-Rayet star is several times the diameter of …

  6. Wolf-Rayet Stars - Harvard University

    Wolf-Rayet stars are hot (25-50,000+ degrees K), massive stars (20+ solar mass) with a high rate of mass loss. Strong, broad emission lines (with equivalent widths up to 1000Å!) arise from the winds of material being blown off the stars.

  7. Hubble View: Wolf-Rayet Stars, Intense and Short-Lived

    Jul 2, 2015 · Many of the brightest and most massive stars in the Milky Way are Wolf-Rayet stars. Because these stars are so intense they do not last very long, burning up their fuel and blasting their bulk out into the cosmos on very short timescale — only a few hundred thousand years.

  8. What Is a Wolf-Rayet Star? The Rare Precursor to a Supernova

    Apr 12, 2023 · According to the Swinburne Center for Astrophysics and Supercomputing, a Wolf-Rayet star is a massive star that is at an advanced stage of its evolution and is in the process of shedding...

  9. What Is A Wolf-Rayet Star? - Universe Today

    Feb 5, 2015 · Stars like our Sun evolve into more massive red giants as they run out of hydrogen to burn in the core. When these stars begin to shed their outer layers, they behave somewhat similarly to...

  10. Wolf-Rayet Star | COSMOS - Swinburne

    Massive stars which are at an advanced stage of stellar evolution and losing mass at a very high rate are known as Wolf-Rayet stars. With masses typically greater than 25 times that of the Sun, they have brief lifetimes and are therefore quite rare objects.

  11. What is a Wolf-Rayet Star? - Universe Guide

    Apr 29, 2025 · Wolf-Rayet stars are a special type of star that were first discovered by French astronomers Charles Wolf (1827-1918) and Georges Rayet (1839-1906) in 1867. One of their star names, starting WR, can identify these stars.

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