Did you know that "Rhiannon" is the name of an asteroid?

[David]

There is an asteroid -- #16912 -- that is named Rhiannon!!

http://newton.dm.unipi.it/cgi-bin/ne...:Rhiannon;main

This asteroid is 1.79 astronomic units (AUs) from the sun. (An astronomical unit is the distance in miles from the Sun to the Earth = 93 million miles.)

Additional physical data on Rhiannon the asteroid can be found here:
http://earn.dlr.de/nea/016912.htm

It was discovered March 2, 1998. It's classified as a Mars-crosser asteroid; that is, its orbit crosses that of Mars.