The pulsar is in a very short period, circular orbit.

Both are moving in nearly circular orbits taking 66.6 and 98.2 Earth days to complete.

The secondary is following a circular orbit with a period of 205.2 days.

He quoted the case of two bodies each in circular orbit.

It travels in a low, circular orbit with a period of about 95 minutes.

Consider for example a circular orbit that passes directly through the center of force.

They are following circular orbits with a period of nearly 133 days.

Instead of its usual almost circular orbit, the planet was now moving away from the sun.

Here, each planet has a circular orbit around the host star.

You also need a quadrupole moment, so a circular orbit won't do.