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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 : Evolutionary Stage : Main Sequence Milky Way : Star : Circumstellar Material : Planetary System |
| Afstand: | 40 lichtjaren |
| Categorie: | Exoplanets Illustrations |
