Planet Neptune Information

Today in Astronomy History
courtesy of astroplanet.info

July 4, 1054
Chinese astronomers record a bright supernova later to become the Crab Nebula (M1).

July 4, 1968
Radio astronomy satellite Explorer 38 is launched.

July 4, 1997
NASA's Pathfinder probe lands on Mars

July 4, 2005
Comet Tempel 1 collides with the "Deep Impact" probe

...also in Astronomy Today
courtesy of astroplanet.info

July 4, 2009
Earth reaches Aphelion

July 4, 2009
Mercury disappears into the glare of the morning Sun.

July 4, 2009
Venus passes less than 7° of the asterism Pleiades (M45)

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.