The difference between the two comes from the definition of orbit and axis. Orbit is the English orbit , which refers to the way an object rotates under the influence of a centrifugal ball. In physics, orbit means the curved orbital path of an object as a result of a gravitational ball. For example, a planet revolves around a star. The orbits of the planets are usually elliptical. Albert Einstein's general relativity is the basis of the current concept of orbital motion mechanics. Axis Some imaginary lines are drawn east-west and north-south to determine a place on a map of the earth. These are called axis and longitude, respectively. Axis and longitude are very important issues in geography. The position of a place is known by its axis and longitude. The time of a place is known from the position of longitude. The part of the axis is called latitude and the part of longitude is called longitude.