Planet Neptune

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

September 15, 1749
According to mathematical calculations, Pluto moves outside Neptune's orbit to remain the outermost planet until 1979.

September 15, 1965
"Lost in Space" premiers. "Danger! Will Robinson! Danger!"

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