{wiki=Newton's_law_of_universal_gravitation}


Newton's law of universal gravitation

Observable universe

Orbit

Parallax in astronomy

Planet

Quasar

Radial velocity

Star

Stellar classification

Stellar nucleosynthesis

Stellar parallax

Variable star

White hole

{wiki=Category:Concepts_in_astronomy}

In astronomy, "concepts" refer to the fundamental ideas and principles that help us understand the universe and its various phenomena. Here are some key concepts in astronomy: 1. **Celestial Bodies**: This includes stars, planets, moons, asteroids, comets, galaxies, nebulae, and black holes. Each has distinct characteristics and behaviors. 2. **Orbits**: The motion of celestial bodies as they travel in elliptical paths around larger bodies due to gravitational forces.


Concepts in astronomy

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 Children: Concepts in astronomy