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  2. Betelgeuse - Wikipedia

    en.wikipedia.org/wiki/Betelgeuse

    This is what Betelgeuse may have looked like up until about 1 million years ago, when it was a main-sequence star. The surface of Betelgeuse shows enhancement of nitrogen, relatively low levels of carbon, and a high proportion of 13 C relative to 12 C , all indicative of a star that has experienced the first dredge-up .

  3. The red giant star Betelgeuse is closer than we thought ... - AOL

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    By studying movements (like sound waves) on the surface of the star suggest Betelgeuse is still fusing helium. That would mean that the star is not close (on a human timescale) to erupting as a ...

  4. Red supergiant - Wikipedia

    en.wikipedia.org/wiki/Red_supergiant

    Betelgeuse; Epsilon Pegasi; Zeta Cephei; Lambda Velorum; Eta Persei; 31 and 32 Cygni; Psi 1 Aurigae; 119 Tauri; Mira was historically thought to be a red supergiant star, but is now widely accepted to be an asymptotic giant branch star. [32] Some red supergiants are larger and more luminous, with radii exceeding over a thousand times that of ...

  5. Variable star - Wikipedia

    en.wikipedia.org/wiki/Variable_star

    Comparison of VLT-SPHERE images of Betelgeuse taken in January 2019 and December 2019, showing the changes in brightness and shape. Betelgeuse is an intrinsically variable star. A variable star is a star whose brightness as seen from Earth (its apparent magnitude) changes systematically with time.

  6. Betelgeuse Is Being Weird Again - AOL

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  7. List of most luminous stars - Wikipedia

    en.wikipedia.org/wiki/List_of_most_luminous_stars

    A near-infrared image of the R136 cluster. This cluster contains many of the most luminous known stars, including R136a1.Credit: ESO/VLT. This is a list of stars arranged by their absolute magnitude – their intrinsic stellar luminosity.

  8. The Most Breathtaking Places in the World (If You Can Get to ...

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    The island’s capital, Plymouth, is now a modern-day ghost town covered in ash, and the Soufriere Hills volcano continues to erupt to this day. javarman3/istockphoto Socotra Island

  9. Bellatrix - Wikipedia

    en.wikipedia.org/wiki/Bellatrix

    Bellatrix is the third-brightest star and a candidate binary star in the constellation of Orion, positioned 5° west of the red supergiant Betelgeuse (Alpha Orionis). It has the Bayer designation γ Orionis, which is Latinized to Gamma Orionis.