HAT-P-7b

Illustration of the brightness curve caused by the planet HAT-P-7b. Clearly recognizable is the transit, the first major drop in brightness. The second, smaller decrease in brightness is caused by the planet being obscured.

HAT-P-7b is an exoplanet that orbits the main sequence star HAT-P-7 every 2,205 days . Due to its high mass , it is believed to be a gas planet .

history

The planet was discovered by the HATNet Project in 2008 using the transit method. Since its star is within the section of the sky observed by the Kepler space telescope in the constellation Swan, its existence could be confirmed and its parameters measured with better accuracy.

properties

The planet orbits its star at a distance of approx. 0.0377 astronomical units (approx. 5.6 million kilometers) and has a mass of approx. 564.6 Earth masses or 1.776 Jupiter masses . Its radius corresponds to approx. 1.45 Jupiter radii or 16 earth radii .

Due to its extreme proximity to the star, it has an equilibrium temperature of 2733K.

Web links

• The exoplanet in the "Encyclopedia of Extrasolar Planets"
• der Planet at Planet.ch ( Memento from October 15, 2012 in the Internet Archive )
• Hat-P-7b at Open Exoplanet Catalog (English)