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Originally posted by wildespace
reply to post by cartesia
Cartesia and Korg Trinity, gravity of any body goes on forever but decreases with distance (the inverse square law). At some distance from the Sun, its gravity becomes so weak that gravity from other stars is more dominant. The sphere of gravitational influence of any body is called the Hill sphere. The Sun's Hill sphere extends to about 2 light years.
The Oort cloud is thought to extend out to about 1 light year, and I consider this to be the physical boundary of the Solar System. It will take the Voyagers thousands of years to reach it.
Originally posted by PaperbackWriter
I say pffft to the whole thing.
I was reading articles about this just the other day saying how it runs off "radioactive power" that amounts to
460watts. Heck your hair dryer requires 1500Watts.
Then it went on to say that that it broadcasts at something like 160watts.
I think most radio stations that I can't pick up after dark are broadcasting at some 1000-5000 watts!
Yet miraculously the Voyager can defeat the Exosphere radio interference and the Ionosphere which would tend to bounce the waves back out into the solar system, and be picked up across the entire distance with a mere less than 200watts??
It doesn't make sense to me.