Binary
the solar system. :)
The Earth's Rotation if you are talking about its revolution around its primary axis,or the Earth's orbit around the sun.
Loose lunar rock material is called regolith.
This type of diagram is often called a Hertzprung-Russell diagram after two astronomers.
Another name is satellite
Binary
Two stars orbiting one another are in a Binary System
Natural objects that orbit a star form that star's solar system. The name comes from the name of our star, which is Sol. Earth is part of the Solar System. Another star's system might be referred to by the name of that star, as in the Polaris System.
Another name for the eye is oculus, which is Latin.
The stars are said to be a "gravitational binary pair"
Orbital x ray
The name of our system, the one the Earth is in, is called the Solar System after the name of the star we orbit, Sol.
"Main sequence" stars are no longer new, and are just cookin' along for millions of years. "Main sequence" stars, depending on their weight and whether they orbit another nearby star can get old and become red dwarfs, white dwarfs, black dwarfs, neutron stars, novas, or super-novas.
Meteors.
Another name for the circulatory system would be the cardiovascular system.
Another name for the circulatory system would be the cardiovascular system.
An apocentre is another name for an apoapsis, the point of a body's elliptical orbit around its system's centre of mass where the distance between the body and the centre of mass is at its maximum.