Owen, Tobias C. Formerly, Institute for Astronomy, University of Hawaii, Honolulu, Hawaii.
Lissauer, Jack J. Space Science and Astrobiology Division, Planetary Systems Branch, Ames Research Center, National Aeronautics and Space Administration, Moffett Field, California.
Marley, Mark S. Space Science and Astrobiology Division, Planetary Systems Branch, Ames Research Center, National Aeronautics and Space Administration, Moffett Field, California.
- The planet and its orbit
- Magnetic field
- Origin and evolution
- Links to Primary Literature
- Additional Readings
The outermost of the four giant planets. Neptune is a near twin of Uranus in size, mass, and composition. With atmospheres and interiors that are strongly enriched in heavy elements, yet less massive than the gas giants Jupiter and Saturn, Neptune and Uranus make up a separate type of planet commonly termed ice-giants. Many planets of similar masses have been found in exoplanetary systems, and this class of planet may be among the most common in the galaxy. Neptune and Uranus enable important case studies that help us to understand such worlds. See also: Uranus
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