EN
upsilon
In March 1999, Marcy and Butler announced the detection of the first true other "solar system" in which they found evidence of 3 planets orbiting a single star. The star is called Upsilon Andromedae.
In March 1999, Marcy and Butler announced the detection of the first true other "solar system" in which they found evidence of 3 planets orbiting a single star. The star is called Upsilon Andromedae.