physical and orbital characteristics mass: 2.986E+24 radius: 4459.7 gravity: 10.0 surface density: 1.774 kg/m3 true density: 44197.721 kg/m3 circumference: 28021.125 km2 surface area: 249931618.795 km2 volume: 1.437E12 km3 distance from star: 1.357 AU eccentricity from star: 0.109 max distance from star: 1.505 AU min distance from star: 1.209 orbital period: 2.499 year length in earth days: 912.889 true year length: 1798.418 orbital velocity: 0.543 velocity in km/s: 16.168 inclination: 0.00 axial tilt: 14.743 day length in hours: 77615.125 rotation speed kmp/h: 2302.676 solar heat: 0.250 albedo: 0.247 greenhouse effect: 0.100 average planet temperature: 202.170 K / -70.980° C hill sphere inner: 1.323 hill sphere outer: 330.978 standard tides: 0.217 m spring tides: 0.253 neap tides: 0.084 tidally locked: Yes satellites: 2
atmosphere surface pressure at sea level: 1.5 atm air density at sea level: 2.6 kg/m3 composition by volume: molecular nitrogen: 68% molecular oxygen: 30% argon: 1% carbon dioxide: 0.5%