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Kepler-19 System

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Exoplanetary Scratchpad

[SysBP Img]

System with two exoplanets discovered by Kepler, 690ly away. Planet b is a small Neptunian about 20 Earth masses and 2 Earth radii. It takes about 9 days to go around its star and has a surface temperature of 480C. Outer Planet c was discovered based on differences in transit timing (5 minutes) that it caused for Planet b. It is tilted relative to 'b', so it itself never transits. It is not massive enough to have its mass estimated. It could be a rocky planet on a circular 5-day orbit or a gas giant in an oblong 100 day orbit. First TTV detected planet confirmed that doesn't transit due to the fact that Kepler continuously observes the planet's transits, rather than stitches together several observations. Future observations with HARPs using radial velocity method will be used to pinpoint planet c's mass.

Kepler 19 System Web Pages

Kepler 19 System In the News

Planet C Discovered with Transit Timing Variation(Sep 2011)

See also Kepler-9 System, WASP-3 System, WASP-5 System, WASP-10 System for other unconfirmed TTV candidates

Year in Review (2011)

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