EarthSketch.com
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Earth Sketch:Local for every one!
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Excerpted from the website:
- often Earth The third planet from the sun, having a sidereal period of revolution about the sun of 365.26 days at a mean distance of approximately 149 million kilometers (92.96 million miles), an axial rotation period of 23 hours 56.07 minutes, an average radius of 6,378 kilometers (3,963 miles), and a mass of approximately 5.974 × 1024 kilograms (1.317 × 1025 pounds).
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