Outline of Neptune

Summary

The following outline is provided as an overview of and topical guide to Neptune:

Neptune – eighth and farthest known planet from the Sun in the Solar System. In the Solar System, it is the fourth-largest planet by diameter, the third-most-massive planet, and the densest giant planet. Neptune is 17 times the mass of Earth and is slightly more massive than its near-twin Uranus, which is 15 times the mass of Earth and slightly larger than Neptune.[a] Neptune orbits the Sun once every 164.8 years at an average distance of 30.1 astronomical units (4.50×109 km). It is named after the Roman god of the sea and has the astronomical symbol ♆, a stylised version of the god Neptune's trident.

Classification of Neptune edit

Location of Neptune edit

Movement of Neptune edit

Features of Neptune edit

Natural satellites of Neptune edit

Inner moons of Neptune edit

Retrograde moons of Neptune edit

Prograde moons of Neptune edit

History of Neptune edit

History of Neptune

Exploration of Neptune edit

Exploration of Neptune

Flyby missions to explore Neptune edit

Future of Neptune exploration edit

Proposed missions to explore Neptune edit

See also edit

Notes edit

  1. ^ Neptune is denser and physically smaller than Uranus because Neptune's greater mass gravitationally compresses the atmosphere more.

References edit

External links edit

  • NASA's Neptune fact sheet
  • Neptune from Bill Arnett's nineplanets.org
  • Neptune Astronomy Cast episode No. 63, includes full transcript.
  • Neptune Profile at NASA's Solar System Exploration site
  • Planets – Neptune A children's guide to Neptune.
  • Merrifield, Michael; Bauer, Amanda (2010). "Neptune". Sixty Symbols. Brady Haran for the University of Nottingham.
  • Neptune by amateur (The Planetary Society)