i want daily distance that can be used as a refrence
2007-01-28 22:12:38 · 2 answers · asked by bahareh f 1 in Science & Mathematics ➔ Astronomy & Space
It sounds like what you want is a ephemeris of the Earth. The Jet Propulsion Laboratory (JPL) has an on-line ephemeris system, see the link below.
I used the Horizons system to find the Sun's distance on 2007-01-29, 12:00 UT; distance = 0.984925303304645 AU
1 AU= 149 597 870.691 km
Horizons can be used to find the position of just about any natural solar system body.
2007-01-29 00:58:26 · answer #1 · answered by morningfoxnorth 6 · 0⤊ 0⤋
The distance of Earth from Sun is slightly variable with time, beacause the orbit is an ellipse instead of a circumference.
For the parameters see
http://www.physicalgeography.net/fundamentals/6h.html
2007-01-28 22:29:53 · answer #2 · answered by Jano 5 · 0⤊ 0⤋