The Sun has a radius of 696,000 km. Solar eclipses tell us that the Moon must...
The Sun has a radius of 696,000 km. Solar eclipses tell us that the Moon must roughly subtend the same angle on the sky. Given the radius of the Moon (1,738 km), estimate the distance to the moon in units of AU.
Homework Answers
Here ,
radius of sun, rS = 696000 km
radius of moon , rM = 1738 km
as the moon and sun subtend same angle
rM/distance between moon = rS/distance between sun
1738/distance between moon = 696000/1 AU
solving for distance between moon
distance between moon = 2.497 *10^-3 AU
the distance to moon is 2.497 *10^-3 AU
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