248,174 subscribers and counting ...
Blue-white Rigel, in the constellation Orion, is one of the brightest stars in the night sky. It’s about twice as hot, and 40,000 times brighter, than our sun.
Aldebaran – brightest star in the constellation Taurus the Bull – is huge! If it were in our sun’s place, its surface would extend almost to the orbit of Mercury.
Someday, the star Betelgeuse will run out of fuel, collapse under its own weight, and then rebound in a spectacular supernova explosion. Someday … but probably not soon.
Mirfak isn’t as famous as its brother star in Perseus, called Algol. But Mirfak is easier to find and can help guide you to Algol.
It’s not the most famous star in Cetus, or the brightest, although it carries the designation Alpha. But Menkar has its own claims to fame.
Hamal, also known as Alpha Arietis, is the brightest star in Aries the Ram. Learn the role this star played in defining the term First Point in Aries.
This star in the constellation Cetus varies in brightness over about 11 months. Its next brightness maximum is due in early 2017.
Almach looks like a single star to the eye and like a colorful double star through a telescope. But today we know Almach as four stars.
Achernar – also known as Alpha Eridani – is the 9th brightest star in Earth’s sky and the flattest star known.
The star Al Risha in Pisces is not bright. But – at the tip of the graceful V in Pisces – it’s very noticeable.
See a very young moon March 28
Orion from the Southern Hemisphere