What is the horizontal parallax of Mars during opposition? The horizontal parallax of the Sun is 8.8 “, the distance of Mars

What is the horizontal parallax of Mars during opposition? The horizontal parallax of the Sun is 8.8 “, the distance of Mars from the Sun is 1.5 AU.

The distance from Earth to Mars during the opposition is equal to 0.5 AU; therefore, p1 = D2p2 / D1 p1 = 1 * 8.8 / 0.5 = 17.6.

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