http://www.howstuffworks.com/question224.htm
Decided to Google it to check I was right...
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RandomTask wrote:http://www.howstuffworks.com/question224.htm
Decided to Google it to check I was right...
RandomTask wrote:It's basic triangulation no?
Think they just measured the angle between us, the sun & the object at both extremes of Earths orbit around the sun, and then knowing what Earths orbit is (i.e. 1 AU) you can use trig to work out how far away the other object is.
Sure Google will have something about it.
If genuinely interested check out a series called "Understanding the Universe". Bit (a lot) geeky, but really interesting.
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