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Aldebaran - Orange Giant Star

What's in a Name: Arabic for "Follower" because it rises after the Pleiades. The Pleiades is a group of 6 stars traveling together through space. The eye of the constellation Taurus, the bull.
Claim to Fame: Brightest star in the constellation of Taurus, the Bull. 13th brightest star in the night sky (apparent visual magnitude = 0.9)
Type of Star: Orange Giant (K5 III Spectral Class). Fusing He to C/O in its core.
How Far Away: 72 light years
How Big: 50 times the size of the sun. Would almost fill out to the orbit of Mercury.
How Bright: 360 times the sun's luminosity (Mv=-0.49)
Where to View: In the constellation of Taurus, the Bull (Star Map).
When to View: October through March from the Northern middle lattiudes

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The Fall 2009 issue of The Earth Scientist, which includes articles on student research into building design for earthquakes and a classroom lab on the composition of the Earth’s ancient atmosphere, is available in our online store.

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part by the National Science Foundation and NASA, our Founding Partners (the American Geophysical Union and American Geosciences Institute) as well as through Institutional, Contributing, and Affiliate Partners, individual memberships and generous donors. Thank you for your support! NASA AGU AGI NSF