Why is Venus never observed high in the sky at midnight from Earth?
Answer
Because its orbit is inside Earth's orbit, Venus never strays far from the Sun in our sky.
Venus maintains an orbit that is situated interior to Earth's orbit around the Sun. This orbital geometry dictates that Venus must always remain relatively close to the Sun's apparent position as viewed from Earth. Since the Sun is never high in the sky at midnight (it is on the opposite side of the Earth from the observer), Venus cannot be visible high overhead at that time because it is constrained to remain near the Sun's celestial longitude.
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