What star in the Milky Way passes all five tests scientists require for it to be a candidate for extraterrestrial life? – 2017

What star in the Milky Way passes all five tests scientists require for it to be a candidate for extraterrestrial life?




alpha_beta_and_proxima_centauri_1

 Alpha Centauri A




Alpha Centauri A (α Cen A) has 110 percent of the mass and 151.9 percent of the luminosity of the Sun, and Alpha Centauri B (α Cen B) is smaller and cooler, at 90.7 percent of the Sun’s mass and 44.5 percent of its visual luminosity.
 During the pair’s 79.91-year orbit about a common centre, the distance between them varies from about that between Pluto and the Sun to that between Saturn and the Sun.





Alpha Centauri A
Right ascension 14h 39m 36.49400s[1]
Declination –60° 50′ 02.3737″[1]
Apparent magnitude (V) +0.01[2]

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