Wednesday, October 17, 2012
Planet found orbiting our nearest neighbour Alpha Centauri
The European Southern Observatory (ESO) has announced that our solar system's nearest neighbour, Alpha Centauri, has a planet roughly Earth sized orbiting one of it`s suns. For those of you unfamiliar with the Alpha Centauri system it`s only 4.3 light years away. That`s practically across the street celestially speaking.
The ESO reports:
European astronomers have discovered a planet with about the mass of the Earth orbiting a star in the Alpha Centauri system - the nearest to Earth. It is also the lightest exoplanet ever discovered around a star like the Sun. The planet was detected using the HARPS instrument on the 3.6-metre telescope at ESO's La Silla Observatory in Chile. The results will appear online in the journal Nature on 17 October 2012.
Alpha Centauri is one of the brightest stars in the southern skies and is the nearest stellar system to our Solar System - only 4.3 light-years away. It is actually a triple star - a system consisting of two stars similar to the Sun orbiting close to each other, designated Alpha Centauri A and B, and a more distant and faint red component known as Proxima Centauri. Since the nineteenth century astronomers have speculated about planets orbiting these bodies, the closest possible abodes for life beyond the Solar System, but searches of increasing precision had revealed nothing. Until now.
where there is one, there`s bound to be another
at 6:10 PM