Look up into the sky. Stars, planets, comets, asteroids, galaxies, etc., are celestial bodies.
the north star ,polaris
The Milky Way
No sun doesn't revolve to any celestial body, but the celestial body revolve around the sun.
satellite
The moonMoon is the closet celestial body.
To derive the escape velocity of an object from a celestial body, you can use the formula: escape velocity (2 gravitational constant mass of celestial body / distance from the center of the celestial body). This formula takes into account the gravitational pull of the celestial body and the distance of the object from its center. By calculating this value, you can determine the minimum velocity needed for an object to escape the gravitational pull of the celestial body.
A celestial body is any physical body beyond the earth's atmosphere.
A Comet
A large celestial body that is composed of gas and emits light is called a star.
pluto
A Comet
Saturn.