hills sphere | PaulAnthonyWilson.com

hills sphere

Credit: T. Pyle (SSC), JPL-Caltech, NASA.

This summer will be the first time that we’ll be able to observe the Hill sphere of a directly imaged exoplanet as it passes in front of its host star! The exoplanet, Beta Pictoris b, is a young (~20 million years old) planet orbiting the star beta Pictoris. Here is an image showing the planet photographed in 2003 and then later in 2009: As chance would have it, we see …

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