Hot answers tagged

3 votes
Accepted

How wide is the Moon's umbra and penumbra at EM-L2?

The angle between the inner and outer edges of the penumbra is the same as the Sun's apparent angular diameter. At 1.0 au from the Sun, that's 32 arcmin or 0.0093 radian. At the distance from the Moon ...
user avatar
  • 16.6k

Only top scored, non community-wiki answers of a minimum length are eligible