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.
Elnath is the second-brightest star in Taurus the Bull. It’s the closest bright star to the galactic anticenter – the point in space that lies directly opposite of the center of our Milky Way galaxy.
We see Capella as the brightest star in the constellation Auriga the Charioteer. It is really two stars, each with a golden color similar to our sun.
We couldn’t live as close to Rigel as we live to our sun, because Rigel is nearly twice as hot – and about 40,000 times brighter – than our local star.
If Aldebaran were placed where the sun is now, its surface would extend almost to the orbit of Mercury.
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.
Okay, it’s not the most famous star in Cetus. It’s not even the brightest, although it carries the designation Alpha. But Menkar has its own claims to fame.
The star 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 like clockwork over 11 months. That’s why, for centuries, stargazers have called it Mira the Wonderful.
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.
On (or around) Halloween, look for Algol – a star named for a demon!
The orange-colored star Mirach in the constellation Andromeda acts as your guide star to three different galaxies: M31 (Andromeda galaxy), M33 (Triangulum galaxy), and NGC 404.
Look for Deneb Kaitos – brightest star in Cetus the Whale – highest in the sky around mid-evening in northern autumn.
For much of the Northern Hemisphere, on clear nights you can always see the brightest star in the constellation Cassiopeia.
Gamma Cephei (aka Errai) is a binary star system with at least one planet. It’ll someday be a North Star for Earth.
Fomalhaut is sometimes called the Loneliest Star. Its planet Fomalhaut b was the first beyond our solar system to be visible to the human eye.
Delta Cephei doubles in brightness every 5.36 days. This star and others like it have helped establish the known scale of our galaxy and universe.
Cepheus the King is not a very conspicuous constellation and has only one relatively bright star, Alderamin – aka Alpha Cephei. This star rotates rapidly!