Heinessen, an example of a habitable planet

A planet (Japanese: 惑星) is an astronomical body, typically in orbit of a star, which has achieved sufficient mass to be rounded by its own gravity, but is not massive enough to cause fusion. These bodies can be divided into two categories: dense and rocky terrestrials and less dense but far larger gas giants.

Contents

Appendices

Appearances

Name variations

  • Planet (LD/DVD subtitles)
  • 惑星 (LD/DVD subtitles — Japanese)

See also

External links

v•d•e Astronomy topics
General phenomena Asteroid (category) • Black hole • Planet (category) • Star (category) • Starzone (category)
Other Galaxy • Light-year • Navigation corridors • Orion Arm • Sagittarius Arm