According to this article astronomers have discovered at least five planets orbiting a star called HD 10180 in the constellation Hydrus.
I am reading this article, Richest Planetary System Discovered Up to seven planets orbiting a Sun-like star at the European Southern Observatory website.
According to this article, astronomers who made this discovery used the HARPS spectrograph, connected to ESO's 3.6-meter telescope at La Silla, during a study of star HD 10180 for six years.
Star HD 10180 is 127 light-years away from Earth.
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