Gliese 581 planetary systemGliese 581 planetary systemGliese 581 planetary systemGliese 581 planetary system

Image by Lynette Cook

““If the local stellar neighborhood is a If the local stellar neighborhood is a representative sample of the galaxy as a representative sample of the galaxy as a whole, our Milky Way could be teeming whole, our Milky Way could be teeming

with potentially habitable planets.”with potentially habitable planets.”

““If the local stellar neighborhood is a If the local stellar neighborhood is a representative sample of the galaxy as a representative sample of the galaxy as a whole, our Milky Way could be teeming whole, our Milky Way could be teeming

with potentially habitable planets.”with potentially habitable planets.”

S. S. Vogt et al. (2010) S. S. Vogt et al. (2010) The Lick-Carnegie Exoplanet Survey: A 3.1 The Lick-Carnegie Exoplanet Survey: A 3.1 MM planet in the habitable zone of the nearby M3V star Gliese 581 planet in the habitable zone of the nearby M3V star Gliese 581. .

Astronomy and Astrophysics, 723, p. 954-965.Astronomy and Astrophysics, 723, p. 954-965.

S. S. Vogt et al. (2010) S. S. Vogt et al. (2010) The Lick-Carnegie Exoplanet Survey: A 3.1 The Lick-Carnegie Exoplanet Survey: A 3.1 MM planet in the habitable zone of the nearby M3V star Gliese 581 planet in the habitable zone of the nearby M3V star Gliese 581. .

Astronomy and Astrophysics, 723, p. 954-965.Astronomy and Astrophysics, 723, p. 954-965.

Gliese 581 systemGliese 581 systeme b c gg d f

Gliese 581: luminosity = 0.012 Sun; ~8 Gyr; ~20 light years away

Earth

Mercury

g

S. S. Vogt et al. (2010) S. S. Vogt et al. (2010) The Lick-Carnegie Exoplanet Survey: A 3.1 The Lick-Carnegie Exoplanet Survey: A 3.1 MM planet in the habitable zone of the nearby M3V star Gliese 581 planet in the habitable zone of the nearby M3V star Gliese 581. .

Astronomy and Astrophysics, 723, p. 954-965.Astronomy and Astrophysics, 723, p. 954-965.

S. S. Vogt et al. (2010) S. S. Vogt et al. (2010) The Lick-Carnegie Exoplanet Survey: A 3.1 The Lick-Carnegie Exoplanet Survey: A 3.1 MM planet in the habitable zone of the nearby M3V star Gliese 581 planet in the habitable zone of the nearby M3V star Gliese 581. .

Astronomy and Astrophysics, 723, p. 954-965.Astronomy and Astrophysics, 723, p. 954-965.

Gliese 581 planetary systemGliese 581 planetary systemGliese 581 planetary systemGliese 581 planetary system

S. S. Vogt et al. (2010) S. S. Vogt et al. (2010) The Lick-Carnegie Exoplanet Survey: A 3.1 The Lick-Carnegie Exoplanet Survey: A 3.1 MM planet in the habitable zone of the nearby M3V star Gliese 581 planet in the habitable zone of the nearby M3V star Gliese 581. .

Astronomy and Astrophysics, 723, p. 954-965.Astronomy and Astrophysics, 723, p. 954-965.

S. S. Vogt et al. (2010) S. S. Vogt et al. (2010) The Lick-Carnegie Exoplanet Survey: A 3.1 The Lick-Carnegie Exoplanet Survey: A 3.1 MM planet in the habitable zone of the nearby M3V star Gliese 581 planet in the habitable zone of the nearby M3V star Gliese 581. .

Astronomy and Astrophysics, 723, p. 954-965.Astronomy and Astrophysics, 723, p. 954-965.

Gliese 581 systemGliese 581 systeme b c g?g? d f

Modified after … Selsis F. et al. (2007) Habitable planets around the star Gliese 581? Astron. Astrophys., 476, p. 1373-1387.

Modified after … Selsis F. et al. (2007) Habitable planets around the star Gliese 581? Astron. Astrophys., 476, p. 1373-1387.

Gliese 581g

Gliese 581 (M3V)

Image by Lynette Cook

Does this equation look familiar?!Does this equation look familiar?!Does this equation look familiar?!Does this equation look familiar?!

S. S. Vogt et al. (2010) S. S. Vogt et al. (2010) The Lick-Carnegie Exoplanet Survey: A 3.1 The Lick-Carnegie Exoplanet Survey: A 3.1 MM planet in the habitable zone of the nearby M3V star Gliese 581 planet in the habitable zone of the nearby M3V star Gliese 581. .

Astronomy and Astrophysics, 723, p. 954-965.Astronomy and Astrophysics, 723, p. 954-965.

S. S. Vogt et al. (2010) S. S. Vogt et al. (2010) The Lick-Carnegie Exoplanet Survey: A 3.1 The Lick-Carnegie Exoplanet Survey: A 3.1 MM planet in the habitable zone of the nearby M3V star Gliese 581 planet in the habitable zone of the nearby M3V star Gliese 581. .

Astronomy and Astrophysics, 723, p. 954-965.Astronomy and Astrophysics, 723, p. 954-965.