MARK GARLICK / SCIENCE PHOTO LIBRARY MARK GARLICK / SCIENCE PHOTO LIBRARY
Planet Pi Mensae b, illustration. Pi Mensae b is one of the most massive extrasolar planets so far found, with a mass of at least ten times that of Jupiter. It may even be a brown dwarf, as depicted in this image. The planet, or brown dwarf, is shown as viewed from the surface of a rocky moon. Two other moons are seen in the sky, one spherical and one irregular in shape. Pi Mensae b orbits the yellow star Pi Mensae, 59 light-years away in the constellation of Mensa (the table). It orbits its star in 5.89 years and at a distance varying from 2.6 to 3.4 astronomical units. In our solar system, this would place it in the asteroid belt.
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