Assuming that the orbit of the planet Mercury around the sun to be a circle, Copernicus
Channel: Doubtnut
Date: 2020-08-30

Assuming that the orbit of the planet Mercury around the sun to be a circle, Copernicus detrmined the orbital radius to be `0.38AU`. From this determine the angle of maximum elongation for Mercury and its distance from the earth  when the elongation is maximum .