Planet

Definition of Planet as it relates to Science, Astronomy, Planetary Science, Astronomical Object

A planet is a celestial body that orbits the sun, is spherical in shape, and has cleared its orbit of other debris. In the context of astronomical objects, planets are massive enough to be rounded by their own gravity, but not so large that they cause thermonuclear fusion, like stars. Planets can be further divided into several subcategories, including terrestrial planets, gas giants, and ice giants. In the hierarchy of Science/Astronomy/Planetary Science/Astronomical Object, the category of planet is a specific type of astronomical object that is studied within the field of planetary science. Planetary science is a branch of astronomy that deals with the formation, evolution, and characteristics of planets and other celestial bodies in our solar system and beyond. As such, the study of planets fits naturally into this hierarchy as it represents a specific type of astronomical object that is studied within the context of planetary science.

Child Hierarchical Categories

[Earth]

[Neptune]

[Saturn]

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