How was it determined that the sun is 93,000,000 miles from earth?
467892
The *relative* distances between the planets can be determined from Kepler's laws and Newtonian physics. This will give the ratios betwen all the distances in the solar system. Once this is done, only one *absolute* distance needs to be found to get all of the rest. Until fairly recently, absolute distances were determined through parallax. It is possible to watch a transit of Venus from two different locations on earth and get a parallax measurement of the distance to Venus in that way. This gives the actual distance between the earth and Venus, and so the distance from the earth to the sun.\n\nOther methods involved parallax measurements of asteroids that pass close enought to the earth to get good measurements. Now, it is much easier to use radio bounced off of other planets (or probes) and the speed of light to get the required absolute distances.
275720
It has to do with the path of the earth and the sun through space.\n\nThe websites I've attached should help.
861224
about 93 million miles, give or take
544990
Well as far as a formula i can't help you there. i just happen to own a program that allows me to draw perfect shapes of any size and diminsion them accordingly (auto CADD). and at the top of your 300 ft house, or where ever it is that your measuring from the horizon at sea level is a tad over 21 miles away (21.20389 to be analy exact). first you must know the the earths circumfrance (i know i can't spell) which is 20,890,637 ft, next you have to know the distance you are away from the earth (which you do, 300 ft). now you have to know the formula for finding a line that intersects your hieght and crosses tangentally across the earths surface. know you have your triangle and apply the Pythagorean theorem. you have an answer.
55410
3,634,066,905 miles!\n\nMercury is an average 35,983,095 miles from the sun.\n\nPluto is an average 3,670,050,000 miles from the sun.\n\nThat's just an average though! Both of their distances from the sun vary a lot.
480741
Xena is the furthest, with a distance of 97 astronomical units from the sun
1038111
100 miles distance is quite insignificant as compared to the millions of Kilometers of the distance between the Sun and the Earth. Nothing will happen except change in duration of day and night for a few seconds.
40812
Earth has an average distance of 149,630,000 kilometers from the Sun,or around 93 million miles.\n\nThe term average is used since Earth's orbit is elliptical.  So it is closer at some particular months than in others.  It is closest in January and farthest in early July, 91,400,000miles (147,094,041km) and 94,400,000 miles (151,922,074km) respectively.\n\nThe moon is 384401 km or 238855 miles.  Again this is average due to the moon's elliptical orbit.  More info: apogee (farthest distance from the Earth) is\n406700 km, and perigee (distance of closest approach to the Earth)\nis 356400 km.
616855
The sun is approx 98 million miles away, light travels 186,282.397 miles per second. So we would know ( and die) about 8.768 minutes later
787978
Hi, \n\nThe sun's orbit is 365.4 days. The actual length changes very little, but with a period of roughly 41,000 years.\n\nHope that helps, \nMatt
663516
150000000 kilometres from the sun\n\nSo, that comes to 166666.67 hours\n\nThat is 6944.44 days\n\nwhich is 19 years, so f.
888962
Actually, the ancient greek astronomer Aristarchus determined the distance before Eratosthenes did.  His estimate was off, but his methodology was correct.\n\nHe realized that the Sun-Moon-Earth angle must be 90 degrees when the moon is in a quarter phase (half lit up, half dark).  However, the quarter moon is in a slightly different position in the sky than when we observe it exactly 90 degrees from the Sun (i.e. when the Sun-Earth-Moon angle is 90 degrees).  This difference can be used to calculate the Sun's distance relative to the moon.\n\nUnfortunately, his observations were off a bit...he used a value of 3 degrees for this difference in position, when it should have been more like half a degree.  He ended up deriving that Sun was 20 times further than the moon (it should be around 400 times further).
221827
by using the speed of light. As the Sun emits the light, it takes time to reach Earth. The speed and time taken is calculated to get the distance between the two. It takes about 7 minutes for the light to reach Earth. So looking at the sun from Earth is looking at the Sun 7 minutes ago!
605343
About 93 million miles each way.
36453
The moon is 238,900 miles from the earth.
765653
Using google earth measurement tool\n\nIt is arround 4,096.96 miles (6,593.42 km) exactly to the city
417138
On it's axis I presume. I'm afraid it's not definitive at all:\n\n25 days at the equator\n27 days 35 degrees of latitude from the equator.\n33 days 75 degrees of latitude from the equator.\n\nThis is for the "surface" of the sun.