The Planet Neptune Information

Welcome to Planet Neptune
A website about the planet Neptune

Named after the Roman god of the sea, Neptune is a gas giant which is visable to telescopic viewing. The existence of Neptune was mathmatically predicted by Urban Le Verrier in 1846 and was discovered on September 23, 1846 by James Challis with 1° of the position predicted by Le Verrier.

Today in Astronomy History
courtesy of

April 22, 1056
Last recorderd naked-eye observation of the Crab Nebula (M1).

April 22, 1891
English mathematician, statistician, geophysicist, and astronomer, Sir Harold Jeffreys, is born. Sir Harold Jeffreys contributed the idea that the Earth's planetary core was liquid. He was knighted in 1953.

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