Calculations for Science Fiction Writers/Circular Orbits
By William Haloupek
Published: January 30, 2013.
Circular orbits are the simplest kind, and some quick and easy calculations will make your science fiction stories involving planets and satellites a lot more credible. Circular motion, in general, can be described without calculus and vectors. All you need is a calculator.
(Exponents don't come out right in the online version.)