How long does it take for the earth to revolve around the sun?
606654
PRecisely 365.24 days. Every four years we have a leap year, but to keep from getting ahead we skip the whole leap year thing once out of every hundred. We might have done so in 2000, I don't remember.
1125779
The earth rotates around the sun on an elliptical course at an axis of 23 degrees.  As the northern or southern hemisphere gets closer or further from the sun the amount of light hitting it changes making the seasons.\n\nCombine the axial tilt and the ellipitical path and you create periods of warmth (spring and summer) and periods of cold (fall and winter).\n\nThe primary property is the earth’s 23 degree tilt.  The axial tilt remains fixed as the earth rotates.  When the earth’s axis is turned away from the sun less light falls on that side of the earth and it gets colder.  When the axial tilt is closer to the sun then more light falls upon the earth making it warmer.  This also explains the length of the days.  The earth’s rotational speed doesn’t change, but one hemisphere is tilted closer to the sun so their day is longer.\n\nThen there is the orbital path.  When part of the earth is farther from the sun it gets colder, as it gets closer it gets warmer.  As the earth rotates around the sun it gets closer and further from the sun so the temperature varies.  This is because of the orbital path the earth takes around the sun.  It is not a circular path because to orbit in a true circular path you need to be in a perfectly balanced orbital position with the speed of travel just matching and canceling the attraction of the object.  Satellites in Geo-stationary orbits around the earth are on such a path (since this point matches the speed of the earth’s rotation the satellite is in a fixed position relative to the earth), no planet is in such a position around the sun.  As the earth rotates it gets closer to the sun (and its speed increases, because the sun’s gravity is tugging on it), as the earth goes around the sun it reaches a point where it is closer than at any other point (perihelion), so the earth’s surface gets warmer.  As the earth continues around the sun it slows down, because the sun’s gravity is still tugging on it.  But, since it has accelerated it has a higher velocity so it can travel farther from the sun.  When it reaches its maximum distance (aphelion) the earth is colder.  At this distance it’s speed (velocity) is zero.  The sun is still tugging on the earth so it falls in toward the sun and accelerates, continuing on its orbital path.\n\nSounds real tricky doesn’t it, but counting all the asteriods, planets, and comets over a billion objects rotate around the sun on similar paths and they all have season.
787984
Not as long as the earth's axis remains tilted at 23° 27’ (lets call this 24°) with respect to its orbit plane around the sun. \n\nThat is why any part of the earth north of  66° lattitude (= 90°- 24°), the Arctic Circle,  is exposed to the sun all 24 hours in the summer when the earth is leaning toward the sun. This is called the "midnight sun".\n\nHope this helps!
54560
The sun does not orbit the Earth (LOL).  The reason we have night and day is because it takes the Earth about 24 hours to rotate (spin).  Each time a side is facing the Sun, it is day, and when it is turned away it is in night.
233745
The mean radius is 6371.0 km.  The radius at any latitude is equal to that times the cosine of the latitude.  The Earth turns once on it's axis in 23 hr 56 min 4.0989 sec, or 23.93447 hrs.\n\nIt takes that long to travel 2(Pi)(6371)(cos(lat)).  Divide that distance by the time above and you're in the ball park (neglecting the difference in polar and equatorial radii).\n\nNote: The figure given for the Earth's rotation is correct according to Astrophysical Data: Planets and Stars.  The 24-hour day is measured from noon to noon - in relation to the Sun.  The Earth kind of rolls around its orbit, so after it has turned thru one rotation it has also moved along its orbit.  It has to turn for another 53.9 sec past the full rotation for the Sun to be back to due south again.
151979
I tried to figure this out and it's incredibly complex, as it turns out.\n\nThe earth rotates at a little over 1037 miles an hour, so you've got that.\n\nThe earth revolves around the sun at about 66486 miles an hour, so you add that.\n\nThen you consider that the sun is moving toward other stars at 45,000 miles per hour.  (and taking us along with it.)  So if you were outside our solar system, you'd see that too, I guess.\n\nThen you add that the sun moves up and down (if you consider the disk of the solar system to be the horizon) at about 261 mph.\n\nThen you add in the sun revolving around the galaxy, which is a difficult thing to calculate, but it can be figured that the sun revolves around at about a blistering 447,386.4 miles per hour.\n\nAdd that all up and you see that, relative to a person standing OUTSIDE the galaxy, we're moving at ABOUT....\n\n\n493,684 miles per hour!  That's awfully fast!\n\nNow, I have no idea how to calculate this, but the whole galaxy is moving as the universe expands...\n\nBut, hope that gives you somewhat of an answer.
676858
150 million kms divided by 300000 km/sec\n8 minutes 20 seconds.\n\nHowever... now comes the fun part.\n\nFusion, the energy source of the sun, takes places only in the core. And the sun is so dense, that a photon created down there, takes a lot of time to come out to the surface. It collides, gets absorbed, is re-emitted, takes a day of to dance.\n\nIn all a photon takes a million year or so to surface.\nAnd million years plus 8 minutes to arrive at the earth.
280025
The moon spins on its axis in the same amount of time it takes to complete one orbit around the earth. That is why the same side of the moon is  always facing earth 29 days 12 hours 44 minutes according to my American Heritage Dictionary's first definition of "moon".
298911
Venus is composed of Rock and Iron (a bit more rock and a bit less iron than the Earth).  The length of the day (period of rotation) is 243 days, and it takes 224.7 days to go around the sun.\n\nVenus spins retrograde (backwards) compared to the direction that it orbits and the direction that the other planets spin.
333459
The Earth orbits the sun at an average speed of 67,000 mph in a counterclockwise direction when viewed from above it's North Pole.
767312
Mars takes 688 Earth days to orbit the Sun once.  This is a bit less than two Earth years (730 days), or not quite 6% less.  So about ten orbits, depending on when in 1987 you want to count from..
352683
The earth has several different movements. First, it rotates on its axis, which takes 24 hours. During this period, the parts of the earth that face toward the sun experience day, while the parts that face away from the sun experience night. Second, the earth revolves around the sun.. in a large elliptical orbit. This process takes a year. The earth's journey around the sun along with the earth's tilting axis produce the seasons. Third, the earth, sun and other planets are all moving within the galaxy, but this is on a very large scale, and is not really noticeable or of interest to most people.\n\nTo sum up:\nmovement of the earth on its axis: rotation. it takes 24 hours.\nmovement of the earth around the sun: revolution. it takes 365.24 days.
215975
one revolution of the earth around the sun
1133398
That depends on where on Earth you are standing. At the poles, the Earth hardly spins at all, but as you travel towards the equator, the rotational speed picks up. This makes sense -- as the circumference of a circle increases, a single point along it has to travel faster to complete a revolution in the same amount of time. \n\nThe rotational speed of the Earth at the equator is about 1,038 miles per hour. The atmosphere at the equator is also slightly thicker due to rotation, and you weigh slightly less. At mid-latitudes, the speed of the Earth's rotation decreases to 700 to 900 miles per hour. \n\nIf the Earth were to stop spinning suddenly, the atmosphere would still be zipping along nicely at around 1,000 miles an hour. As a result, everything not attached to bedrock would pretty much be scoured clean. \n\nThe circumference of the Earth at the equator is 25,000 miles. The Earth rotates in about 24 hours. Therefore, if you were to hang above the surface of the Earth at the equator without moving, you would see 25,000 miles pass by in 24 hours, at a speed of 25000/24 or just over 1000 miles per hour. \n\nMultiply by cosine of your latitude to see how fast the Earth is rotating where you are. \n\nHope you get an A if you are doing a science project haha.  Or hope you learned something :)
425853
You can learn that something is moving.  Either the earth is rotating (true), or the sky is revolving around the earth (once thought to be true).  You can also measure the length of the siderial day.  That is the length of time it take for the earth to rotate reletive to the stars.  Our "day" of 24 hours is based on the sun's motion.  If we were to measure time based on the stars we would have a day of 23hours and 56 minutes.  You can measure the length of the day with star trails, although to really get the timing down might be hard.
505384
We can see the sun rise and set, and it would be impossible for the sun to revolve around the earth because of the huge difference in math, so the only explanation is that the earth is spinning.\n\nIn reply to the first two replys, the sun is not the center of the universe, it is the center of the solar system. Also, because of the sun's gravity, we REVOLVE, but that has nothing to do with rotation. MOMENTUM is what causes us to not feel the spin/movement, not inertia.
171383
It takes anywear from 8-9 min! The reason being that the earth does not revolve around the sun in a perfect circle. This answer only counts if I interpreted your question correctly.If not the speed of light itself does not travel.