Hubble measures tenth planet
Published on 11 Apr 2006 at 4:19 pm.
1 Comment.
Filed under Tenth Planet.
For the first time, NASA’s Hubble Space Telescope has seen distinctly the “tenth planet,” currently nicknamed “Xena,” and found that it’s only slightly larger than Pluto.
Though previous ground-based observations suggested that Xena’s diameter was about 30 percent greater than Pluto, Hubble observations taken Dec. 9 and 10, 2005, showed Xena’s diameter as 1,490 miles (with an uncertainty of 60 miles).
Pluto’s diameter, as measured by Hubble, is 1,422 miles.
credit: NASA
Eward N. on 4 Jan 2008 at 12:07 pm: 1
someone says that the 10th planet is bigger than jupiter, What’s the truth?