How fast does the earth orbit the sun in Kilometers/second?
2007-09-28 03:50:27 · 8 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Mean orbital speed 29.79 km/s
But it varies because Earth's orbit is slightly elliptical.
Minimum orbital speed 29.29 km/s
Maximum orbital speed 30.29 km/s
2007-09-28 04:02:21 · answer #1 · answered by campbelp2002 7 · 0⤊ 0⤋
Distance to sun: 1.5 x 10^11 m (150 million km)
diameter of orbit: 2Ïr = 9.425 x 10^11 m*
1 yr = 365.25 d = 3.11576 x 10^7 s
average speed = d / t = 9.425x10^11 m / 3.11576 x 10^7 s = 2.987 x 10^4 m / s = 29.87 km / s
*approximately -- this would be true if the orbit were a circle, but it's an ellipse. However, the eccentricity of the earth's orbit is small enough that this is a reasonable approximation
2007-09-28 11:11:38 · answer #2 · answered by dansinger61 6 · 0⤊ 0⤋
Speed of the Earth's Revolution around the Sun:
Radius of the Earth's Orbit = 1 AU = 150,000,000 kilometers
Circumference of the Earth's Orbit = 2*pi*R = 942,000,000 kilometers
Time to complete one Orbit = 365.2422 days = 8766 hr
Speed of Revolution = Distance/Time = 942,000,000 km / 8766 hr = 107,000 km/hr = 30 km/sec
2007-09-28 11:04:00 · answer #3 · answered by Anonymous · 0⤊ 0⤋
you are standing on a planet that is evolving and revolving at nine thousand miles an hour. Its orbiting at nineteen miles a second, around the sun, that is the source of all our power. Aaaand now the sun, you and me, and all the stars that we can see are moving at a million miles a day. in the outer spiral arm, at fourteen thousand miles an hour, of a galaxy called the Milky Way. Aaaand our galaxy itself contains a hundred to two hundred millions of stars. its a hundred thousand light years side to side and it bulges in the middles sixteen thousand light years thick, but out by us its just three thousand lightyears wide. We are 30 thousand lightyears from Galactic Central Point. We go around every two hundred years. and our galaxy itself is one of millions of billions in this amazing and expanding universe.
2007-09-28 11:56:13 · answer #4 · answered by quasar 2 · 1⤊ 0⤋
the speed of the earth in kilometers/second is 382500000Km/sec
2007-09-28 11:31:53 · answer #5 · answered by dabu 1 · 0⤊ 0⤋
29.78 Kms/second, 107208Kms/hour
Source
http://www.heavens-above.com/earth.asp?Session=kebgcapkckmcbkdjadjckilh
2007-09-28 11:38:12 · answer #6 · answered by Graham H 1 · 0⤊ 0⤋
like 30 or something close to that!
2007-09-28 11:33:38 · answer #7 · answered by Anonymous · 0⤊ 0⤋
29.79 km/s
2007-09-28 11:39:50 · answer #8 · answered by Anonymous · 0⤊ 0⤋