Planets and most astronomical bodies spin about some axis or revolution.

A comet is a small astronomical body which orbits the sun.

This is convenient for calculating the positions of astronomical bodies.

The sights are then set using the local hour angle and the declination of whatever astronomical body is being used.

Different sets of elements are used for various astronomical bodies.

To you, it represented nothing more than the soulless movement of astronomical bodies.

When astronomical bodies, such as the Sun, are studied using light, only the surface of the object can be directly observed.

The object is the smallest astronomical body of which an image has been made.

But no one can claim an astronomical body for himself.

Other astronomical bodies such as these listed have known atmospheres.