Orbital Velocity of the Earth
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The Orbital Velocity of the Earth is approximately 29,784.7357 m/s m/s.
The Math / Science
The Earth travels in a near circular orbit around the Sun. This means that the distance the Earth travels in one year is the circumference of a circle with a radius of one astronomical unit (au).
Velocity is computed as distance divide by time, in this case:
r = 1 astronomical unit
c = 2⋅π⋅r
v = c / (1 sidereal year)
convert v to meters per second
The formula to compute the Orbital Velocity of the Earth is:
v = ( 2⋅π⋅r) / sr
where:
- v = Orbital Velocity of the Earth
- r = mean radius of the Earth from the Sun (aka, 1 astronomical unit)
- sr = sidereal year
