Mathematical formulas

Basic Physics

Subjects Home Search Guide

Sections

1Vectors
21D Kinematics
32D and 3D Motion
4Newton's laws and forces
5Circular motion
6Work, energy and power
7Linear momentum, impulse and collisions
8Rotation
9Equilibrium and elasticity
10Gravitation
11Fluid mechanics
12Oscillations and periodic motion
13Waves
14Sound
15Thermodynamics
16Basic electricity
17Physical constants
18Guide to approaching a problem

Search formulas…

Language

Loading formula…

Mathematical formulas · API-served content · Guide

About Reviews Contact

Subjects
Basic Physics
Gravitation
Orbital period

10. Gravitation

Orbital period

In 10. Gravitation

Formula

T = 2 π \frac{r ^{3}}{GM}

Equivalently

T^{2} = \frac{4 π ^{2}}{GM} r^{3}

Related formulas

Related
Circular orbital velocity
$v_{orb} = \frac{GM}{r}$
Open formula Open in section