Orbits
An orbit is the path an object in space travels around another. Lots of objects in the Universe orbit others. The Moon orbits the Earth.
Johannes Kepler
Occupation
Astronomer, Mathematician, Scientist, Teacher
Year born
1571
Research Areas
Planetary motion, Optics, Geometry
Image
Credit
This work
by August Köhler (circa 1910, based on 1627 original)
is licensed under All rights reserved
Nicolaus Copernicus
Occupation
Astronomer, Mathematician, Clergyman
Year born
1473
Research Areas
Planets, Mechanics
Image
Credit
This work
by Unknown Artist (circa 1580)
is licensed under Creative Commons Zero v1.0 Universal
Calculate the Speed of the Planets
Did you know the Earth is travelling around the Sun at nearly 107,000 kilometres per hour?
Interactive Orrery
An Orrery is a moving, mechanical model of the Solar System. It shows how all of the planets orbit around the Sun.
Kepler's Laws: Find the Mass of the Sun
Many years ago, a mathematician named Johannes Kepler created a set of rules explaining planets' movement in our Solar System.