Question

What is the angular diameter of the earth viewed from the moon? What about the earth viewed from the sun?

Answer 1

So the Earth-view from the moon would appear 3.75 times as large as the Moon appears in the sky on earth. I looked up the moon's typical angular diameter, it is 0.5 degree. So the Earth's typical angular diam would be 1.9 degree. The average angular diameter of the Moon, as seen from the Earth, is about 31 arcminutes