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Under a Crimson Sun
ISBN-13:
9781461481331
Veröffentl:
2013
Seiten:
324
Autor:
David S. Stevenson
Serie:
Astronomers' Universe
eBook Typ:
PDF
eBook Format:
EPUB
Kopierschutz:
1 - PDF Watermark
Sprache:
Englisch
Beschreibung:
Gliese 581 is a red dwarf star some 20.3 light years from Earth. Red dwarfs are among the most numerous stars in the galaxy, and they sport diverse planetary systems. At magnitude 10, Gliese 581 is visible to amateur observers but does not stand out. So what makes this star so important? It is that professional observers have confirmed that it has at least four planets orbiting it, and in 2009, Planet d was described in the letters of The Astrophysical Journal as "the first confirmed exoplanet that could support Earth-like life."
The Evolution of Red Dwarfs.- Gliese 581, a Planetary System 20 Light-years from Earth.- 'Super-Earths'.- The Development of Life.- Prospects for Sustained Evolution.- Surface Conditions on Super Earths.- Gliese 581 - the Next 400 Billion Years.- Comparison with the Evolution of Earth.- Red Dwarfs - the Final Bastions of Life?.
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