Thursday, 25 June 2015

The Universe - Arcturus

Arcturus is a spectacular star, easily found by using the 'Big Dipper' of Ursa Major as a pointer.

Arcturus is an orange-red giant star.

It is the brightest star in the constellation Boötes (the Herdsman). 

Arcturus is also among the brightest stars that can be seen from Earth.

it has stopped fusing hydrogen in its core as the sun does, and it is now starting to fuse heavier elements such as carbon.

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