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Artist’s impression of a hot Jupiter exoplanet in the star cluster Messier 67 | by European Southern Observatory
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Artist’s impression of a hot Jupiter exoplanet in the star cluster Messier 67

This artist’s impression shows a hot Jupiter planet orbiting close to one of the stars in the rich old star cluster Messier 67, in the constellation of Cancer (The Crab). Astronomers have found far more planets like this in the cluster than expected. This surprise result was obtained using a number of telescopes and instruments, among them the HARPS spectrograph at ESO’s La Silla Observatory in Chile. The denser environment in a cluster will cause more frequent interactions between planets and nearby stars, which may explain the excess of hot Jupiters.

 

More information: www.eso.org/public/images/eso1621a/

 

Credit:

ESO/L. Calçada

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Taken on June 17, 2016