Mount Olympus on Mars has a height of 27 km. At what angle can it be observed from the orbit of the Mars satellite Phobos

Mount Olympus on Mars has a height of 27 km. At what angle can it be observed from the orbit of the Mars satellite Phobos from a distance of 9400 km., If it is visible at the edge of the disk?

To determine the angular dimensions of an object, we use the formula
ρ = 206265ʹʹ * 27 km / 9400 km = 592.46ʹʹ = 10ʹ.

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