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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.
Kredit:ESO
O snímku
| Id: | eso0819a |
| Typ: | Kresba |
| Datum zveřejnění: | 16. června 2008 |
| Související články: | eso0819 |
| Velikost: | 6001 x 4368 px |
O objektu
| Jméno: | HD 40307 |
| Typ: | Milky Way : Star : Circumstellar Material : Planetary System Milky Way : Star : Evolutionary Stage : Main Sequence |
| Vzdálenost: | 40 světelné roky |
| Kategorie: | Exoplanets Illustrations |
