Tag: Hertzsprung-Russell Diagram

  • Stars

    FAS Astronomers Blog, Volume 30, Number 5. Stars are huge balls of hydrogen plasma powered by nuclear fusion reactions at their core. Stellar Distances Except…

  • Observing the Stars

    Young Astronomers Blog, Volume 29, Number 17. After becoming familiar with the Night Sky and observing the Moon and planets, you might try to find…

  • Betelgeuse is Dimming

    Young Astronomers Blog, Volume 28, Number 2. Astronomers measure the magnitude of a star in a bit of a strange way that dates to Hipparchus.…