Follow this link to skip to the main content
NASA Ames Research Center
RSS Send
Home > News > NASA Kepler News



Discovery of Kepler-17b
11.04.2011

A team of Kepler scientists discovered the transiting hot giant exoplanet Kepler-17b. The planet has an orbital period of 1.486 days going around a Sun-like star. The planet mass is about 2.5 times that of Jupiter and its radius is about 1.3 times that of Jupiter. The host star is active, with dark spots that are frequently occulted by the planet. The continuous monitoring of the star reveals a stellar rotation period of 11.89 days, eight times the planet’s orbital period; this period ratio produces stroboscopic effects on the occulted starspots.

The discovery paper, with lead author Jean-Michel Désert, was published in The Astrophysical Journal 2011 Nov 4.

Return to News Archive