A trio of super-Earths (artist's impression)

Artist's impression of the trio of super-Earths discovered by an European team using the HARPS spectrograph on the ESO 3.6-metre telescope at La Silla, Chile, after 5 years of monitoring. The three planets, having 4.2, 6.7, and 9.4 times the mass of the Earth, orbit the star HD 40307 with periods of 4.3, 9.6, and 20.4 days, respectively.

Crediti:

ESO

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Identificazione:eso0819a
Tipo:Illustrazione
Data di rilascio:16 Giugno 2008
Notizie relative:eso0819
Grandezza:6001 x 4368 px

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Nome:HD 40307
Tipo:Milky Way : Star : Circumstellar Material : Planetary System
Milky Way : Star : Evolutionary Stage : Main Sequence
Distanza:40 Anni luce
Categoria:Exoplanets
Illustrations

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