2007-03-02 22:12:55 · 5 answers · asked by melbournewooferblue 4 in Science & Mathematics ➔ Astronomy & Space
There are really two main ways to think of the size of the solar system.
The first is to say where does the gravitational force of the sun give way to the gravitational force of neighbouring stars. This gives us a solar system of about 2 light years - or 125,000 times the distance of the Earth from the Sun.
The second is to say how far out can we find objects actually bound by that gravity. This gives a lower known limit (but there may be objects we have not found yet) of a little less than one light year or 50,000 times the distance of the Earth from the Sun.
Both of these are vastly further than the distance to Pluto which is about 36 times further from the Sun than the Earth is.
2007-03-02 22:30:24 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Much farther than pluto. It stops when the sun stops to be the dominate gravitational force. This is called the Heliopause.
http://tech.groups.yahoo.com/group/NeatAstronomy/
2007-03-02 22:31:55 · answer #2 · answered by chase 3 · 1⤊ 0⤋
Well, nobody knows and nobody will ever know. Even the best of our technology can scan only a few billion miles from earth. Who knows there is another earth just a few billion billion miles away?
2007-03-02 22:24:23 · answer #3 · answered by Gaurav Gupta 1 · 0⤊ 1⤋
Around Pluto's radius. There is no well-defined boundary
2007-03-02 22:15:42 · answer #4 · answered by Anonymous · 0⤊ 1⤋
up to iternity... no known boundary r listed
2007-03-02 22:21:18 · answer #5 · answered by goku 2 · 0⤊ 1⤋