From the spacecraft, which is 120 km from the lunar surface, the astronaut observes an object 60 m long.
| September 16, 2020 | Education
From the spacecraft, which is 120 km from the lunar surface, the astronaut observes an object 60 m long. What is the angular radius of the object?
60/120000 = 0.0005 radian = 0.02865 degrees = 1 ’43’ ‘
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