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.

Credit:

ESO

Over de afbeelding

Id:eso0819a
Type:Ontwerp
Publicatiedatum:16 juni 2008
Gerelateerde berichten:eso0819
Grootte:6001 x 4368 px

Over het object

Naam:HD 40307
Type:Milky Way : Star : Circumstellar Material : Planetary System
Milky Way : Star : Evolutionary Stage : Main Sequence
Afstand:40 lichtjaren
Categorie:Exoplanets
Illustrations

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