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Second Proxima Centauri planet confirmed in 25-year-old Hubble data

1 month ago   |   By Astronomy Now

The starry sky above ESO's La Sill Observatory showing the double star Alpha Centauri AB and Proxima Centauri, the closest star to the Sun. Proxima Centauri is now known to host two exoplanets. Image: Y. Beletsky /ESO/ESA/NASA/M. Zamani
The red dwarf Proxima Centauri, just 4.2 lights years away, is the Sun's nearest stellar neighbour. It was discovered in 1915 and 101 years later, astronomers at MacDonald Observatory found a planet orbiting the star every 11.2 days at a distance of about 7.5 million kilometres .
Earlier this year, a team led by Maria Damasso of Italy's National Institute...
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