61 Cygni isn’t bright. But it moves exceptionally rapidly against the background of more distant stars. Its motion reveals its nearness to Earth.
Posts by Larry Sessions
The Lagoon Nebula aka M8 is the largest and brightest of a number of nebulosities in and around Sagittarius.
One of the prettiest stories in all skylore surrounds this star. “On the 7th night of the 7th moon … “
A beautiful view of the waning crescent moon, Pleiades star cluster and bright star Aldebaran In dark eastern skies before dawn on July 21.
The moon (and sun) creates the tides. An extra-close full moon creates higher tides. But this same gravitational effect doesn’t extend to humans.
The ruby Heart of Scorpius is the 16th brightest star in our sky and one of the most gigantic stars known.
World timekeepers will not add a leap second on June 30, 2014. Meanwhile, a proposal to dump the leap second has been deferred until 2015.
Moon myths, take that! Five of the most common myths about the moon explained.
What do you mean by noon? Do you define it by your clock or wristwatch? Or the gnawing in your stomach? Here’s how astronomers think about noontime.
Seeing animals in clouds, or a face in the moon, are examples of pareidolia. Look here for photos and to test your own ability to see things that aren’t there.