Re: What a rubbish artists impression
Agreed - the Earth as pictured is 5 times too big.
Holding my iPad at arm's length, the picture of the Earth is about the size of my thumbnail, i.e. it subtends an angle of approx. 1cm / 100 cm = 0.01 radians. (Using small angle approximation).
The actual angle at closest approach should be approx. 8 000 miles / 4 400 000 miles = 0.002 radians.
I don't suppose my arm is really 100 cm long, but I was trained in physics, so it's close enough.
Biting the hand that feeds IT
