Transcription: This animation showsdifference between an elliptical orbit and a circular orbit. The red planet is orbiting the sun in a circle. The blue planet is orbiting the sun in an ellipse. Notice how the red planet is always the same distance away from the sun because the sun is at the center of its circular orbit. Notice, however, that the distance between the blue planet and the sun is changing because its orbit is elliptical and the sun is at one focus of the ellipse. So sometimes the blue planet is orbiting The blue planet is far from the Sun and other times the blue planet is close to the Sun. Thi ...