First Earth-like Planet Discovered
orbiting Gliese 581
April 25, 2007

Nick Anthony Fiorenza

Copyright © 2007 Nick Anthony Fiorenza, All Rights Reserved

Gliese 581

Astronomers have discovered the most Earth-like planet outside our Solar System to date, about 1.5 times larger than the Earth and capable of having liquid water. It lies in the "Habitable Zone" of its solar system. The host star system is Gliese 581, which is among the 100 closest stars to us, located only 20.5 light-years away in the constellation Libra. It is a red dwarf with a mass of only one third the mass of our Sun, one of the most common types of stars in our Galaxy."


Full Press Release from ESO


For those interested in the zodiakal placement of Gliese 581 in sidereal Libra and exploring its astrological impact, I invite your participation in a discussion about it on the new "Lunar Planner Forum: Stars & Constellations."

Artist's impression of the planetary system around the red dwarf Gliese 581. Using the instrument HARPS on the ESO 3.6-m telescope, astronomers have uncovered 3 planets, all of relative low-mass: 5, 8 and 15 Earth masses. The five Earth-mass planet (seen in foreground - Gliese 581 c) makes a full orbit around the star in 13 days, the other two in 5 (the blue, Neptunian-like planet - Gliese 581 b) and 84 days (the most remote one, Gliese 581 d).

Image and Caption Credit: ESO

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