Question

As of 2008, the nearest planet found outside of our own solar system orbits the star Epsilon Eridani, only 10.5 light years from Earth. The planet’s orbit is an ellipse with a major axis
of 630 million miles and a minor axis of 449 million miles. Let Epsilon Eridani be at the origin of a coordinate system. Find an equation for the planet’s orbit, using millions of miles as the unit.