... a fourth planet in a multi-planet system, with hints that there might be more. The instrument in question is the HARPS spectrograph located on the ESO 3.6 metre telescope at La Silla Observatory, Chile and both teams utilised the...
... wobble in the star caused by the gravitational pull of an orbiting planet was spotted by astronomers using the HARPS spectrograph on the European Southern Observatory's 3.6-meter telescope at La Silla. The team of astronomers, led by Guillem Anglada...