Thuban was the Pole Star some 5,000 years ago, when the Egyptians were building the pyramids.
Spica’s 2 stars orbit a common center of gravity in only 4 days. Their mutual gravity distorts each star into an egg shape, with the pointed ends facing each other.
We see this nearly star system as a single star in our sky, but it’s really 3 stars. Of the 3, Proxima is closer to our sun than any other known star.
Beta Centauri – aka Hadar – joins Alpha Centauri in pointing to the Southern Cross. Like Alpha, Beta Centauri is also 3 stars, but 2 of Beta’s stars will someday become nearby supernovae.
Cor Caroli is a binary star and the brightest star in the northern constellation Canes Venatici, the Hunting Dogs. Its name means Heart of Charles.
You have to go far south on Earth’s globe to see the Southern Cross. Bluish Acrux, aka Alpha Crucis, is its brightest star.
Alphard – Heart of the Snake in constellation Hydra – is ascending in the east in the evening now, a sign of spring coming.
Canopus is the 2nd-brightest star in the sky, and it’s easy to spot on February evenings, if …
Regulus, brightest star in Leo the Lion, is now rising in the east after sunset. You might not notice it, but stargazers know that, when Regulus appears in this way, spring is near.
February evenings are a great time to see Sirius. It’s hard to miss the brightest star in Earth’s sky. More about the Dog Star, plus how to spot it
Moon, Aldebaran, Pleiades before bedtime
Learning to live on the moon … underwater