2007-11-27 04:58:57 · 5 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
Nothing. It exists mathematically, but it is too close to the sun to have any stationary matter in it. What ever might pass through it would have to be in orbit or it would fall into the sun. The reason it can be plotted is the nature of orbital mechanics. When Earth is orbiting the solar focus, higher gravity accelerates it. When it is passing around the empty focus, lower gravity slows it down, just not enough for us to notice.
2007-11-27 06:03:20 · answer #1 · answered by skepsis 7 · 1⤊ 0⤋
Nothing is at the other focus. This bothered Kepler (and others) a lot at the time, but it is true. Basically it is just a mathematical oddity that another focus with no physical meaning exists. If you think of an ellipse as a conic section, then one focus would be the axis of the cone and the other would be off to the side somewhere. Does that help? Not really, but the thought occurred to me so I just threw it out there.
2007-11-27 06:15:52 · answer #2 · answered by campbelp2002 7 · 0⤊ 0⤋
nothing is at the other focus !!!
but the balance between the gravitational pull is maintained by the revoluton of moon around the earth!!
2007-11-27 05:08:09 · answer #3 · answered by .:NoDdY:. 2 · 0⤊ 2⤋
Nothing.
2007-11-27 05:07:29 · answer #4 · answered by ZikZak 6 · 4⤊ 0⤋
gravitational pull.
2007-11-27 05:06:07 · answer #5 · answered by The Nihilist 3 · 0⤊ 1⤋