Calculate the angular diameter of the Moon with these known facts: Moon's linear diameter = 3480 km Moon's average distance from Earth = 384,000 km Number of arc seconds in 1 radian = 2.06 × 10⁵ A) 31 arc seconds B) 187 arc seconds C) 1750 arc seconds D) 1870 arc seconds E) 1910 arc seconds

Question

Quizplus · Accepted Answer

The angular diameter in radians is calculated by dividing the linear diameter by the distance: 3480 km / 384,000 km = 0.0090625 radians. Converting to arc seconds: 0.0090625 radians × 2.06 × 10^5 arc seconds/radian = 1870 arc seconds.

Calculate the Angular Diameter of the Moon with These Known