Planetary system around HD 69830

The HARPS measurement reveal the presence of three planets with masses between 10 and 18 Earth masses around HD 69830, a rather normal star slightly less massive than the Sun. The planets' mean distance are 0.08, 0.19, and 0.63 the mean distance between the Earth and the Sun. From previous observations, it seems that there exists also an asteroid belt, whose location is unknown. It could either lie between the two outermost planets, or farther from its parent star than 0.8 the mean Earth-Sun distance.

Crediti:

ESO

A proposito dell'immagine

Identificazione:eso0618a
Tipo:Illustrazione
Data di pubblicazione:18 Maggio 2006
Notizie relative:eso0618
Dimensione:3000 x 2250 px

A proposito delll'oggetto

Nome:HD 69830
Tipo:Milky Way : Star : Circumstellar Material : Planetary System
Distanza:40 Anni luce
Categoria:Exoplanets

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