Orbit:
* Focuses on the path: It describes the curved path a celestial body takes around another object due to gravitational attraction.
* Describes the motion: It encompasses the shape of the path (circular, elliptical, etc.), its speed, and the gravitational forces involved.
* Broader term: It can be used for any object that orbits another, including satellites around planets, planets around stars, and even stars around galactic centers.
Revolution:
* Focuses on the time period: It specifically refers to the time it takes for a celestial body to complete one full orbit around another object.
* Refers to the duration: It is a measure of how long it takes to return to the starting point in the orbit.
* Specific to celestial bodies: It is primarily used for planets revolving around stars, moons revolving around planets, and sometimes for binary star systems.
In simpler terms:
* Orbit is the road the celestial body travels on.
* Revolution is the time it takes to drive around that road once.
Example:
* Orbit: The Earth orbits the Sun in an elliptical path.
* Revolution: It takes the Earth approximately 365.25 days to complete one revolution around the Sun, which we experience as a year.
Therefore, "orbit" describes the motion itself, while "revolution" describes the duration of that motion.