| The Columbia Encyclopedia, Sixth Edition. 2001-07. |
| Juno, in astronomy |
(j ´n ) (KEY) , in astronomy, 3d asteroid to be discovered. It was found in 1804 by C. Harding. It has a diameter of c.120 mi (190 km). Its average distance from the sun is 2.67 astronomical units, and its orbital period is 1,594 days. |
| The Columbia Encyclopedia, Sixth Edition. Copyright © 2007 Columbia University Press. |
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