2007-07-22 02:05:09 · 5 answers · asked by kanisha_cutejune 1 in Science & Mathematics ➔ Physics
Jeez, sorry, I've been struggling w/ wikipedia's explanation of Kepler's first and second laws, which appear to be able to derive the distance to the sun, for about 1/2 an hour, but I'm having trouble with the math - wanna give it a try?
http://en.wikipedia.org/wiki/Kepler%27s_laws_of_planetary_motion
2007-07-22 03:35:11 · answer #1 · answered by Gary H 6 · 0⤊ 0⤋
The best article I have seen on the subject of the early determination of the Astronomical Unit (distance from earth to sun) is in the December issue of Mathematics Magazine from the MAA.
Transits of Venus and the Astronomical Unit
Donald A. Teets
335-348
The method used in the old days involved measuring the time of Venus' transit across the Sun from different latitudes.
Today we can measure the distance very accurately using radar (see reference).
2007-07-22 14:18:46 · answer #2 · answered by Anonymous · 0⤊ 0⤋
It is possible to use parallax and trigonometry to deduce the distance when Venus or Mercury pass between the Earth and the Sun;, Very precise measurements are made from both a northerly and a southern position.
Here is an interesting link.
http://en.wikipedia.org/wiki/Transit_of_Venus#Scientific_interest_in_transits
2007-07-22 09:10:42 · answer #3 · answered by J C 5 · 0⤊ 0⤋
In light years
2007-07-22 09:11:07 · answer #4 · answered by loves2snuggle2xx 2 · 0⤊ 0⤋
with tha help of ur hand
just kidding
2007-07-22 09:07:16 · answer #5 · answered by Anonymous · 0⤊ 0⤋