The Inclination of an orbit is the orbital plane and the equatorial plane of the planet about which the body is orbiting.An orbit at an inclination of X degrees , An inclination of Zero denotes that the orbit is in the equatorial plane ,i.e the orbital plane and the equatorial plane coincide.An inclination of 90 degrees represents the orbit from pole to pole and is known as polar orbit.
Polar orbits are useful for the spacecrafts that carry out mapping or surveillance of the planets, This is because as the planet rotates ,the spacecraft has access to every point on the surface of the planet .In the case of polar orbit about the earth,when the orbital plane's path is as similar as earth's path in the solar orbit ,The Sun would maintain same inclination.
Polar orbits are useful for the spacecrafts that carry out mapping or surveillance of the planets, This is because as the planet rotates ,the spacecraft has access to every point on the surface of the planet .In the case of polar orbit about the earth,when the orbital plane's path is as similar as earth's path in the solar orbit ,The Sun would maintain same inclination.
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