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Exoplanetary Scratchpad

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An F6 type star which has the first exoplanet discovered in a retrograde orbit. Also the largest known exoplanet at 1.74 RJ and 0.5 JM. Discovered by transit. It may be "flipping" its star's axis. Orbit hints at a near planetary collision in its early years. One of the 6 out of 27 planets analyzed by the WASP team found to orbit backwards around its star in 2010. It was found to be abundant in CO, depleted in water and methane. It lacks a prominent stratosphere and has efficient day-night energy circulation.

WASP-17 System Web Pages

WASP-17 System In the News

First Retrograde Planet Discovered (2009)

One of six Retrograde Exoplanets (2010)

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