Maximum Distance From The Sun 94 Million 537 Thousand Miles minimum Distance From The Sun 91 Million 377 Thousand Miles mean Distance From The Sun 92 Million 957 Thousand And 200 Miles mean Orbital Velocity 66000 Miles Per Hour 0rbital Eccentricity 0.017 obliquity Of The Ecliptic 23 Degrees 27 Minutes 8.26 Seconds length Of The Tropical Year Equinox Equinox 365.24 Days lenght Of The Sidereal Year Fixed Star Fixed Star 365.26 Days length Of The Mean Solar Day 24 Hours And 3 Minutes And 56.5555 Seconds At Mean Solar Time length Of The Mean Sidereal Day 23 Hours And 56 Minutes And 4.091 Seconds At Mean Sederial Time mass 6600 Milion Milion Milion Tons equatorial Diameter 7927 Miles polar Diameter 7900 Miles oblateness One 298th density 5.41 mean Surface Gravitational Acceleration Of The Rotating Earth 32.174 Feet Per Second Per Second escape Velocity 7 Miles Per Second