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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.
Crédit:ESO
À propos de l'image
| Identification: | eso0819a |
| Type: | Dessin |
| Date de publication: | 16 juin 2008 |
| Communiqués de presse en rapport: | eso0819 |
| Taille: | 6001 x 4368 px |
À propos de l'objet
| Nom: | HD 40307 |
| Type: | Milky Way : Star : Circumstellar Material : Planetary System Milky Way : Star : Evolutionary Stage : Main Sequence |
| Distance: | 40 années lumière |
| Catégorie: | Exoplanets Illustrations |
