Satellite - Celestial body that orbits a planet, Universe - All All mass, energy, space and time. mass, energy, space and time., Star - A luminous sphere of gas, that emits light and heat , held together by its own gravity.it this object, Galaxy - Collection of stars, dust remnants and gas held together by gravity., Solar system - Collection of celestial objects orbiting a star., Planet - A celestial body that orbits a star, possesses enough mass to exist as in a circular shape and has cleared its orbital neighbourhood., Rotational period - Time taken to complete one full rotation., Orbital Period - Time taken to complete one full orbit., Orbital Radius - Distance from centre of planet to satellite, Orbital Height - Distance from surface of planet to satellite., Geostationary Orbit - Orbit with a period of 24 hours.,

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