Archive for May 11th, 2017

The Big Dipper over Chile


(Syfy Wire::Bad Astronomy) – Phil Plait:

The Big Dipper is more than just a celestial boreal icon. Except for Dubhe and the last star in the tail, called Alkaid, the other stars are all at about the same distance from us, and physically associated with each other. They’re called the Ursa Major Association (or cluster), after the constellation the Big Dipper is part of. Those stars are all about 80 light years from us (Alkaid is about 100, and Dubhe 120). …

blastr 2017-5-9 big-dipper

Yuri Beletsky: Big Dipper over Chile