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WASP-12 System

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Exoplanetary Scratchpad

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The shortest period transiting Hot Jupiter known when discovered in 2008 and the first carbon-rich planet ever found (more Carbon than Oxygen). One of the two largest known planets at 1.79 Jupiter radii. Hottest known exoplanet at time of its discovery. Planet is being ripped apart by star. It is stretched in the shape of a rugby ball and leaves a ring around its star. Huge cloud of material detected around the planet containing elements never before detected on an exoplanet. This cloud is much larger than expected, and shrouds the entire star, making it undetectable at some wavelengths. Studying this cloud could reveal magnetic properties of the stellar system. Magnesium found in this shroud supports the blow-off theory where Hydrogen escapes from the planet so quickly other material is blown off with it. Two other Hot Jupiters are known to have planetary enveloping clouds, and others as close are expected to have similar system wide clouds, but not those further away. It has much more methane than water vapor. It may produce shock waves as it plows through its star's stellar wind (the first evidence of shocks around an exoplanet, like Earth and Saturn's bowshocks), possibly produced by a strong planetary magnetic field. This could protect its atmosphere from being stripped away. It could have a diamond core and other terrestrial planets in system would have black spots on them and also be carbon based. One of 5 exoplanets whose water abundance was measured by Hubble in 2013 and found to be less abundant than expected, probably due to a layer of haze or dust blocking detection..

WASP-12 System Web PagesEdit

WASP-12 System In the NewsEdit

Hottest Exoplanet Transit Detected (2008)Edit

Planet Confirmed to be Fastest and Hottest (Oct 2008)Edit

Planet Being Stretched and Inflated (2010)Edit

Planet Being Devoured (2010)Edit

First Carbon-Rich Exoplanet (Dec 2010)Edit

Planet Produces Shock Waves (Apr 2011)Edit

System Enveloped in its Death Shroud (Nov 2012)Edit

Hubble Finds Water and Haze in 5 Exoplanet Atmospheres (2013)Edit

See also WASP-17 System, HD 209458 System, WASP-12 System, XO-1 System, WASP-19 System

More Precise Measurements Still Yield Less Water Than Expected (2014)Edit

See also HD 189733 System, HD 209458 System, WASP-12 System

Hubble Observes 10 Hot Jupiters (Dec 2015)Edit

See WASP-12 System, WASP-6 System, WASP-31 System, WASP-33 System, HD 189733 System, HAT-P-12 System, WASP-17 System, WASP-19 System, HAT-P-1 System, HD 209458 System

See AlsoEdit

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