SOLAR SYSTEM

Detailed explanation-1: -Explanation: The period is the time it takes for a satellite to complete one orbit. It is also called the sidereal period. A sidereal orbit uses some external fixed or apparently motionless object such as the sun or star for reference in determining a sidereal period.

Detailed explanation-2: -Orbital period : Time taken by a satellite to complete one revolution in its orbit around the earth is called orbital period.

Detailed explanation-3: -sidereal period, the time required for a celestial body within the solar system to complete one revolution with respect to the fixed stars-i.e., as observed from some fixed point outside the system.

Detailed explanation-4: -One revolution is a period of time that elapses between the successive passes of the satellite over a given meridian of earth’s longitude. Synodic and sidereal periods differ from one another because of the earth’s rotation.

Detailed explanation-5: -Its maximum and minimum velocities of satellites are 3×104m/s and 1×103m/s respectively.

Detailed explanation-6: -All orbits are elliptical, which means they are an ellipse, similar to an oval. For the planets, the orbits are almost circular. The orbits of comets look more like thin ellipses than circles. It is important to know that circle is a special form of ellipse.