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!
61 Cygni isn’t bright. But it moves exceptionally rapidly against the background of more distant stars. Its motion reveals its nearness to Earth.
Albireo is known best for the striking color contrast between its two stars, with the brighter star gold and the dimmer star blue.
How to spot it, plus an explanation of why meteors in annual showers have radiant points.
One of the prettiest stories in all skylore surrounds this star. “On the 7th night of the 7th moon … “
On summer nights, two famous stars shine down from high in the northern sky. Eltanin and Rastaban represent the fiery Eyes of the constellation Draco the Dragon.
At the end of the Scorpius the Scorpion’s graceful pattern of stars, you’ll find the Stinger stars. Shaula and Lesath are noticeably bright and close together.
The ruby Heart of Scorpius is the 16th brightest star in our sky and one of the most gigantic stars known.
Alphecca. Gemma. Alpha Coronae Borealis or simply Alpha Cor Bor. They’re all names for one star – the brightest star in the constellation Northern Crown.