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

August 29, 1541
Nicolaus Copernicus's book "De revolutionibus orbium coelestium" ("On the Revolutions of the Celestial Spheres") goes to the printer.

August 29, 1864
William Huggins discovered the chemical composition of nebulae.

August 29, 1975
A star in Cygnus goes nova and becomes the fourth brightest in sky

Home | Observing Neptune | Neptunian Facts | Moons of Neptune | Neptunian Opposition | Glossary | Email | Links