Question

Fill in the blank from the choices in the brackets:

Two stars are orbiting their common center of mass under the force of gravity.

The more massive star's orbit around the center of mass has a semi-major axis ["equal to", "greater than", "smaller than"] the less massive star.

The eccentricity of of the more massive star's orbit is ["smaller than", "equal to", "larger than"] than the less massive star.

The period of of the more massive star's orbit is ["smaller than", "equal to", "larger than"] the less massive star.

Answer 1