What is the angular diameter of the Sun when observed from Mars, if, when observed from the Earth, the angular diameter of the Sun is 30 ‘.

What is the angular diameter of the Sun when observed from Mars, if, when observed from the Earth, the angular diameter of the Sun is 30 ‘. The distance from the Sun to Mars is 1.5 AU.

decision
p (h) / p (m) = D (m) / D (h); p (m) = p (h) * D (h) / D (m); p (m) = 30 * 1 / 1.5 = 20

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