"The Kepler-186 system is a stellar system, at least five planets, located 500 light-years from Earth in the constellation Cygnus.
The five planets of Kepler-186 are orbiting a red dwarf star (spectral type M), a less massive star
(0.48 solar mass) and less warm (3500 K, 5778 K for the Sun) the Sun, size and mass ≈ 0.5 relative to the Sun.
Red dwarfs are by far the most numerous stars in the universe, 70% of the stars in the Milky Way are red dwarfs.
The discovery of the exoplanet Kepler-186F confirms that planets the size of Earth exist in the habitable zone of stars other than our Sun.
The four other planets of Kepler-186, Kepler-186b, Kepler-186c, Kepler-186d and Kepler-186e revolve around their sun, all respectively 4, 7, 13, and 22 days.
So close to their star, they are certainly too hot to keep water in the liquid state. The 5 inner planets of this system are all smaller than 1.4 times the size of Earth."
Astronoo
Red dwarfs are by far the most numerous stars in the universe, 70% of the stars in the Milky Way are red dwarfs.
The discovery of the exoplanet Kepler-186F confirms that planets the size of Earth exist in the habitable zone of stars other than our Sun.
The four other planets of Kepler-186, Kepler-186b, Kepler-186c, Kepler-186d and Kepler-186e revolve around their sun, all respectively 4, 7, 13, and 22 days.
So close to their star, they are certainly too hot to keep water in the liquid state. The 5 inner planets of this system are all smaller than 1.4 times the size of Earth."
Astronoo
No comments:
Post a Comment