Video: HD 85512 b Super-Earth among 50 newly discovered exoplanets
Astronomers employing HARPS instruments have found 50 new alien planets. High Accuracy Radial velocity Planet Searcher instrument (HARPS) is part of the European Southern Observatory (ESO) 3.6-meter telescope located in La Silla, Chile (scroll down for video).
The image shows HD85512b Super-Earth orbiting its star at 35 light-years from Earth. Photo: ESO/M. Kornmesser
The bunch of alien planets comprises 16 “super-Earths” – planets featuring a larger mass than Earth but smaller than Jupiter. The attention was drawn in particular by one of the super-Earths – named HD 85512b – because it orbits within the habitable zone.
A habitable zone is regarded as a neighbourhood (narrow belt) around a star where life-hospitable conditions are expected. Therefore liquid water which is vital for life sustainability, is very likely to be found on planet’s surface.
HD 85512 b “Super-Earth” has a mass about 3.6 times greater than Earth and is located at a distance of 35 light-years from us. Compared to a universe scale, such a distance is regarded as “close”.
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HARPS detection system is based on the slight modifications of radial velocity of Earth-like planets if they circulate close to their star.
HARPS spectrometer provided also an insight into the probability that a Sun-like star to host low-mass planets such as the Earth. It was revealed that about 40% of such stars feature at least one planet less massive than Saturn.
Video: ESO Observatory – 16 new Super-Earths found