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Delta Cephei doubles in brightness every 5.36 days and thereby helped establish the known distance scale of our galaxy and universe.
While not one of the most conspicuous stars in the night sky, Alderamin – aka Alpha Cephei – is easy to spot, and is interesting for its rapid rotation on its axis.
Altair needs only 10 hours to spin once on its axis, in contrast to roughly a month for our sun. This mighty star spins on its axis faster than Earth does!
Albireo is known best for the striking color contrast between its two stars – the brighter gold star and the dimmer blue star.
Binoculars reveal that Epsilon Lyrae is a double star – two stars in one. A telescope shows that each component star is also a double. The double double star!
One of the prettiest stories in all skylore surrounds this star. “On the 7th night of the 7th moon … “
These two famous stars shine down from the northern sky. Eltanin and Rastaban represent the fiery Eyes of the constellation Draco the Dragon.
Shaula and Lesath are noticeably bright and close together. They lie at the end of Scorpius the Scorpion’s graceful curved tail.
Bright red Antares is easy to spot now. It’s the brightest star in the constellation Scorpius and represents the Scorpion’s Heart.
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.
Astronauts’ views of Mount Shasta