Description: XO-3b is an exoplanet with about 11.79 times the mass of Jupiter, and it orbits its parent star XO-3 in about 3.2 days. The radius of this object is 1.217 times that of Jupiter. Astronomers announced their discovery on May 30, 2007, at the American Astronomical Society in Honolulu, Hawaii. Its discovery is attributed to the combined effort of amateur and professional astronomers working together on the XO Project using a telescope located on the Haleakala summit in Hawaii.
Mass (Jupiter mass): 7.29 MJ
Radius (Jupiter radius): 1.41 RJ
Density: 8.09 g/cm³
Equilibrium Temperature: 1729.0 K
Orbital Period: 3.19154 days
Semi-major Axis: 0.0476 AU
Eccentricity: 0.29
Inclination: 79.32°
Host Star: XO-3
Spectral Type: F5V
Temperature: 6781.0 K
Stellar Mass: 1.21 M☉
Stellar Radius: 1.41 R☉
Planet Letter: b
Object ID: 3.11482
Host ID: 2.103412
Discovery Date: 2008-04
Discovery Year: 2007
Discovery Method: Transit
Discovery Locale: Ground
Discovery Facility: XO
Discovery Instrument: Apogee CCD Array