Gliese 876 d
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High Quality Content by WIKIPEDIA articles! Gliese 876 d is an extrasolar planet approximately 15 light-years away in the constellation of Aquarius. The planet was the third planet discovered orbiting the red dwarf star Gliese 876. At the time of its discovery, the planet had the lowest mass of any known extrasolar planet apart from the pulsar planets orbiting PSR B1257+12. Due to this low mass, it can be categorized as a Super-Earth. Like the majority of known extrasolar planets, Gliese 876 d was discovered by analysing changes in its star's radial velocity as a result of the planet's…mehr

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High Quality Content by WIKIPEDIA articles! Gliese 876 d is an extrasolar planet approximately 15 light-years away in the constellation of Aquarius. The planet was the third planet discovered orbiting the red dwarf star Gliese 876. At the time of its discovery, the planet had the lowest mass of any known extrasolar planet apart from the pulsar planets orbiting PSR B1257+12. Due to this low mass, it can be categorized as a Super-Earth. Like the majority of known extrasolar planets, Gliese 876 d was discovered by analysing changes in its star's radial velocity as a result of the planet's gravity. The radial velocity measurements were made by observing the Doppler shift in the star's spectral lines.