Uploaded January 2008 | Updated September 2026, 3 weeks ago

This animation shows how a gnomon's shadow tracks the motion of the Sun over the course of a day.

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Rotation Curve for a Uniform Ball of Stars

Animations for Physics and Astronomy |

Gnomon

Name: Rotation Curve for a Uniform Ball of Stars @mrg3
Uploaded: 2008-01-16T01:29:31-0400
Duration: 8 min 17 s
Description: The rotation curve of a system can tell us quite a bit about how the mass is distributed. This is the rotation curve for a hypothetical Uniform Ball of Stars