If Mercury is 1.5*10⁸ km from Earth and has a diameter of 2,400 km,what is its angular diameter as viewed from Earth? A) 3.3 degrees B) 3.3 meters C) 3.3 radians D) 3.3 minutes of arc E) 3.3 seconds of arc

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Quizplus · Accepted Answer

The angular diameter in radians is calculated by dividing the actual diameter by the distance. Converting this to seconds of arc, we find it to be approximately 3.3 seconds of arc.

If Mercury Is 1