• February 10, 2011

    Episode 319: Really Hot Planet

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    Many extrasolar planets have been found using the transit technique. This occurs when a planet blocks some of the light from its parent star as it orbits in front of it. If astronomers detect a repeating pattern, they can glean information about the planet's orbit. Most of these planets are very close to their host stars, and so they are very hot. A new record has been set in the WASP-33 system. The planet, called WASP-33b, appears to be 3200 degrees Celsius, or about 5800 Fahrenheit!