Kepler-33b

Kepler-33b is an extrasolar planet orbiting Kepler-33 in the constellation Cygnus. It is one of five planets orbiting Kepler-33.

Kepler-33b

The size of Kepler-33b as compared to Earth and Jupiter
Discovery[1]
Discovered by	Jack Lissauer
Discovery site	Moffett Field, California
Discovery date	January 26, 2012
Detection method	Transit
Designations
Alternative names	KOI-707.05[2]
Orbital characteristics
Semi-major axis	0.0677±0.0014 AU[3]
Eccentricity	0
Orbital period (sidereal)	5.66793±0.00012 d[3]
Inclination	86.39±1.17°[3]
Longitude of periastron	90°[2]
Time of periastron	2454964.8981±0.0075 jd[2]
Physical characteristics
Mean radius	0.16±0.02 RJ[3]
Surface gravity	3.6g[2]

Discovery

Kepler-33b was, along with twenty-six other planets in eleven different planetary systems, confirmed to be a planet on January 26, 2012.^[1][4]

The Kepler-33 system

Kepler-33b orbits its host star with 4 other planets. All five planets orbit its star closer than Mercury does to the Sun.^[5] Of those five, Kepler-33b is closest.^[4] All Kepler-33 planets are too close to be in the habitable zone.^[6]

See also

• List of planets discovered by the Kepler spacecraft