Hi, Ron, List,
I chose the single word share from the following early
introductory paragraph:
The near-Earth asteroid 3753 Cruithne is in an unusual orbit about
that of the Earth, one which is known in the lingo of celestial
mechanics as being co-orbital with the Earth (meaning
Ron B. wrote:
Sterling W. wrote:
The near-Earth asteroid 3753 Cruithne is in an unusual orbit about
that of the Earth, one which is known in the lingo of celestial
mechanics as being co-orbital with the Earth (meaning it SHARES [my
emphasis] the Earth's orbit with it) and, more particularly,
Ron,
I agree with you that it is a very poor choice of word indeed. Share
implies all
those things you mention that Cruithne is emphatically NOT.
I would not have chosen it myself by any means.
But the original post was a very short one (unusual for me) that introduced
their
URL
Hi,
In 1980, there was a search down to magnitude 14
that turned up nothing at the Earth's Trojan points.
But there ARE Earth Trojans, or at least candidate
objects. It takes a long series of observations to
verify a true Trojan orbit, and they're doing that.
In a search that is ongoing
3753 Cruithne and several other asteroids share the Earth's
orbit but are not Trojans, but complicated horseshoes:
http://www.astro.uwo.ca/~wiegert/3753/3753.html
3753 Cruithne does not share Earth's orbit:
http://neo.jpl.nasa.gov/cgi-bin/db_shm?sstr=3753
Cruithne's orbit crosses the
Hi, Ron, List,
The web page I cited was put up by: Paul Wiegert, UWO Physics Dept,
Astronomy Group, The University of Western Ontario, London, Ontario
Canada; Kimmo Innanen, Dept. of Physics and Astronomy, York University,
Toronto, Ontario, Canada; and Seppo Mikkola, Tuorla Observatory,
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