sheeny
19-06-2007, 07:56 AM
From this mornings news @ nature, astronomers have found that Eris is 27% more massive than Pluto. It was previously known to be about 1/3 larger - approx. 3000km diameter. Now the mass determination allows the calculation of density - approx 2.3 g/cm3.
http://www.nature.com/news/2007/070611/full/070611-10.html
Al.
http://www.nature.com/news/2007/070611/full/070611-10.html
Al.