Technorati Tags: Planet Xena, Xena, New York Times, Astronomy, PlutoAstronomers announced yesterday that they had found a lump of rock and ice that was larger than Pluto and the farthest known object in the solar system. The discovery will probably rekindle debate over the definition of "planet" and whether Pluto still merits the designation.
The new object - as yet unnamed, but temporarily known as 2003 UB313 - is now 9 billion miles away from the Sun, or 97 times as far away as Earth and about three times Pluto's current distance from the Sun. Its 560-year elliptical orbit brings it as close as 3.3 billion miles. Pluto's orbit ranges from 2.7 billion miles to 4.6 billion...
Informally, the astronomers have been calling it Xena after the television series about a Greek warrior princess, which was popular when the astronomers began their systematic sweep of the sky in 2000. "Because we always wanted to name something Xena," Dr. Brown said...
I'm Dr. Joshua Schwimmer, a nephrologist and internal medicine physician in New York City. • Kidney Notes was the first active nephrology blog. (Trivia: Kidney Notes is so old that the National Library of Medicine still uses it as an example of how to formally cite blogs.) • Professionally, you can find me at Kidney.nyc. • Kidney Notes is for educational purposes only, not medical advice. Consult qualified health care professionals. See disclaimer.
Saturday, July 30, 2005
Planet Xena
From the New York Times: