# Hypotrochoid from Collinear Orbiters

Hypotrochoid from Collinear Orbiters

This Demonstration shows the trajectory of a red point on the segment that connects two black points and that travel around two circles. The location of is fixed in terms of the ratio . The phase or offset does not change the shape of the green orbit. The angular velocity of determines the number of lobes of the green curve it lies on.

C

AB

A

B

C

|AC|/|AB|

C