January 2015
S M T W T F S
« Dec    
 123
45678910
11121314151617
18192021222324
25262728293031
News for Norther Colorado and the world

Wednesday, January 28, 2015

Posts Tagged ‘Arctlurus’

EarthSky Tonight—Oct. 31, Arcturus is a Halloween

EarthSky Tonight—Oct. 31, Arcturus is a Halloween ghost of the summer sun

Courtesy of EarthSky A Clear Voice for Science www.EarthSky.org Every Halloween – and a few days before and after – the brilliant star Arcturus sets at the same time and on the same spot on the horizon as the summer sun. What’s more, this star rises at the same time and at the same place on the horizon as the sun does during the dog days of summer. So – around Halloween – it is as if Arcturus is a fainter ghost of the summer sun. At mid-northern latitudes, Arcturus now ... Full Story

Page 1 of 11