Where is the speed of Earth, and is the orbital radius. Then the eccentricity calculation of the comet is
And the numerical values we used here is , R=4 and V=1/2 so that =0.866
These are the given values and konwn formulas
A comet is observed to have a speed when it is at a distance from the Sun, and its direction of motion makes an angle with the radius vector from the Sun. Show that the major axis of the elliptical orbit of the comet makes an angle with the initial radius vector of the comet, where and are the dimensionless ratios. Use the numerical values that we used for the eccentricity calculation to now calculate a value for the angle .
Thanks a lot~.