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Earth Statistics

Planetary Symbol: Surface Gravity: 9.78 m/s^2
Diameter: 12,753 km (7,926 miles) Rotation Period with respect to Sun (Length of Day): 24 hrs
Mass: 5.98x10^24 kilograms
(6.5e21 tons)
Rotation Period with respect to stars (Sidereal Day): 23 hrs 56 min
Density: 5,515 kg/m^3 Revolution Period about the Sun (Length of a Year): 365 days 5 hrs
Minimum Distance from Sun: 146 million km
(91 million miles)
Tilt of Axis: 23o 27"
Maximum Distance from Sun: 152 million km
(94.5 million miles)
Temperature: -89o C to 57.7o C
(-128o F to 136o F)
Orbital Semimajor Axis: 1.0 AU Average Surface Temperature (K): 287K
Satellites: 1 (the Moon)

Earth Image Archive

Comparative Planetary Statistics -- in table form

Comparative Orbital Statistics -- in table form

Earth's circumference, aphelion, perihelion, speed and more...

Last modified February 16, 2001 by Jennifer Bergman.

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What is the distance from the Earth to the Sun when the Earth is at perihelion and when it is at aphelion? At what month is the Earth closest to the Sun? What is the circumference of the Earth? How fast is the Earth moving about its axis; how about around the Sun?

If a body (like the Earth) is orbiting around the Sun, we say it is closest to the Sun at perihelion and farthest from the Sun at aphelion. In 2000, perihelion for the Earth was on January 3, 2000, and...more

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Windows to the Universe, a project of the National Earth Science Teachers Association, is sponsored in part is sponsored in part through grants from federal agencies (NASA and NOAA), and partnerships with affiliated organizations, including the American Geophysical Union, the Howard Hughes Medical Institute, the Earth System Information Partnership, the American Meteorological Society, the National Center for Science Education, and TERC. The American Geophysical Union and the American Geosciences Institute are Windows to the Universe Founding Partners. NESTA welcomes new Institutional Affiliates in support of our ongoing programs, as well as collaborations on new projects. Contact NESTA for more information. NASA ESIP NCSE HHMI AGU AGI AMS NOAA