EarthSky Tonight—Algol, a famous variable star, dimmest tonight
Algol is what astronomers call an eclipsing binary star. In other words, the single point of light that we see as Algol is really two stars.
EarthSky Tonight—Nov 25, Find the Water Jar of Aquarius to the west of Jupiter
Though Fomalhaut ranks as a first-magnitude star, it comes nowhere close to matching Jupiter in brilliance.
EarthSky Tonight—Nov 1, Looking out our Milky Way galaxy’s south window
Remember the Great Square of Pegasus and the star Fomalhaut, and you have what it takes to look out the south window of the Milky Way galaxy!
EarthSky Tonight—Oct. 31, Arcturus is a Halloween ghost of the summer sun
Every Halloween – and a few days before and after – the brilliant star Arcturus sets at the same time and on the same spot on the horizon as the…