posted on Dec, 22 2011 @ 10:02 AM
Originally posted by clintdelicious
Sorry but this is nothing new. It was even a question on the fantastic tv quiz hosted ny Stephen Fry over here called 'QI'.
Stephen Fry was talking about Cruithne, which was discovered about 25 years ago. However, Fry was wrong to say it was a "second moon". Cruithne does
NOT orbit the earth, but is a body that co-orbits the Sun with the Earth.
Earth also has at least one Trojan Asteroid, 2010 TK7
which was discovered in 2010. Trojan Asteroids are also co-orbital, but are NOT
moons. Trojan Asteoids hang out in a planet's Lagrange points.
The one mentioned in the OP (2006 RH120) is no longer a satellite of the Earth, so the OP's title perhaps should have been "Earth HAD two moons".
However, most astronomers would even say that is not correct. 2006 RH120 was a "temporary satellite capture", and was only held by the earth's
gravity for a relatively short time. It is now in orbit around the Sun, and is expected to return near the Earth again in about 17 years.
edit on 12/22/2011 by Soylent Green Is People because: (no reason given)