Neptune page

  Neptune appears blue due to the methane gas.

Neptune's great dark spot is a mystery. What other planet has a famous spot?

Neptune has 13 known moons at last count 8/31/06.

Facts about Neptune:

Diameter .......................... 49,530 km

Mass   ............................... 17.1 X Earth's mass

Distance from Sun ............  30.901 AU  (astronomical units)

Number of Moons ............  13

note: 1 Au = 149,978,069 km

This page is under construction.  Check back at a later time.