Subj : Stargazing News - April 17th, 2024
To   : All
From : CJ
Date : Tue Apr 16 2024 03:04:20

Wednesday, April 17, 2024

Arcturus Follows the Bear (all night)

The evening eastern sky on mid-April evenings is dominated by the bright 
orange star Arcturus, aka Alpha Boötis. This star, located 37 light-years 
from Earth, is a K0-class red-orange giant with 1.5 times the mass of our 
sun, and about 100 times the output of the sun in visible wavelengths. 
Arcturus is visible from everywhere on Earth except for extreme southern 
latitudes. For observers in mid-northern latitudes, only Sirius shines 
brighter. Arcturus’ high proper motion will alter the shape of Boötes over 
the next few thousand years. Its name derives from the expression “Guardian 
of the Bear” because it trails Ursa Major, the Big Bear.

(Data courtesy Starry Night)
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