How far is earths orbit?

Answer 1

Orbit is not a place - its a loop/curved-path that heavenly objects follow to revolve around. Consider two equally massive heavenly objects, A & B (round about the size of the Sun) with distance of few light minutes in-between. The gravity of object A will attract object B towards itself and so will object B attract object A towards itself. As both of them move towards each other, they will fall towards the center of each other. However, they both will move so quickly that gravity will pull them in a curved path and both of the objects will continue to fall indefinitely towards each other's center. The result would be astonishingly both, A & B setting curved-path/orbit around each other. Obviously, the result would have been different if one object were more massive than the other, like in the case of our Solar system - The star Sun is many times more massive than all the planets orbiting around it. An object with more mass will always have more gravity hence objects with lesser gravity, and no other influence, will always orbit around it.

If by orbit you meant space, then space isn't up there, but everywhere. Everything in the universe is in space including our planet Earth. Its more like the planet Earth has a dense atmosphere which traps heat, gases and vapors from escaping. As Earth's atmospheric pressure drops to about 1 Pa at 100 km altitude so, the mark 100 km (60.2 miles) is internationally considered as space.

Answer 2

The Earth is 93 million miles from the Sun. The Earth is 28,000 miles in circumference. It turns once a day and completes 365.25 spins in one year. 365 .25 x 28,000 = miles you travel a year without moving from home = 10.227 million miles a year. Now add the distance of the earth's orbit round the Sun in a year = Pi x diameter.

3.142 x 2 x 93,000,000 = 584 million miles.