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Trajectory vs Orbit - What's the difference?

trajectory | orbit |

As nouns the difference between trajectory and orbit

is that trajectory is the path of a body as it travels through space while orbit is a circular or elliptical path of one object around another object.

As a verb orbit is

to circle or revolve around another object.

trajectory

Noun

(trajectories)
  • (astronomy, space) The path of a body as it travels through space.
  • (cybernetics) The ordered set of intermediate states assumed by a dynamical system as a result of time evolution.
  • Metaphorically, a course of development, such as that of a war or career.
  • *{{quote-magazine, date=2013-03
  • , author= , title=The Smallest Cell , volume=101, issue=2, page=83 , magazine= citation , passage=It is likely that the long evolutionary trajectory' of ''Mycoplasma'' went from a reductive autotroph to oxidative heterotroph to a cell-wall–defective degenerate parasite. This evolutionary ' trajectory assumes the simplicity to complexity route of biogenesis, a point of view that is not universally accepted.}}

    Derived terms

    * (sense)

    orbit

    English

    Noun

    (en noun)
  • A circular or elliptical path of one object around another object.
  • The Moon's orbit around the Earth takes nearly one month to complete.
  • A sphere of influence; an area of control.
  • In the post WWII era, several eastern European countries came into the orbit of the Soviet Union.
  • The course of one's usual progression, or the extent of one's typical range.
  • The convenience store was a heavily travelled point in her daily orbit , as she purchased both cigarettes and lottery tickets there.
  • (anatomy) The bony cavity containing the eyeball; the eye socket.
  • (physics) The path an electron takes around an atom's nucleus.
  • (mathematics) A collection of points related by the evolution function of a dynamical system.
  • Derived terms

    * *

    Verb

    (en verb)
  • To circle or revolve around another object.
  • The Earth orbits the Sun.
  • To move around the general vicinity of something.
  • The harried mother had a cloud of children orbiting her, asking for sweets.
  • To place an object into an orbit around a planet.
  • A rocket was used to orbit the satellite.

    Synonyms

    * (move around the general vicinity of) circumambulate, tag along * (place an object into an orbit) launch

    Derived terms

    * orbital

    See also

    * satellite * (wikipedia "orbit")