G-pluto.T.gif (1179 bytes) Exploring The Planets
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Ceres
 
Ceres Rotation
74k JPEG
NASA, ESA, and J.Parker (Southwest Research Institute)

First sighted in 1801 by Italian astronomer Giuseppe Piazzi, Ceres was the first and largest asteroid to be discovered. It takes only 9 hours to rotate on its axis.  The Hubble Space Telescope imaged different faces of Ceres in 2003 and 2004.


2003 UB313

The body designated 2003 UB313 is a cold world that is larger than Pluto and more than three times farther from the Sun .  Mike Brown of Caltech, Chad Trujillo of the Gemini Observatory, and David Rabinowitz of Yale discovered the object in 2005 as they analyzed imagery collected over a year earlier. 

New Planet
31k JPEG
Samuel Oschin Telescope, Palomar Observatory

This composite of 3 images taken 90 minutes apart shows the movement of 2003 UB313.


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