Astro 1 PSU Final Exam | 150 Questions with 100% Correct Answers | Verified | Latest Update 2024
Why do we see the Moon appear to go through phases as seen from Earth? A. The Moon reflects "Earthshine", so it depends on how much light from the Earth is hitting the Moon B. As the Moon rotates, it presents a different phase to us over the course of its "day". C. Depending on where the Moon is along its orbit, we see different amounts of its illuminated side D. The Earth's shadow blocks out part of the Moon from time to time - C. Depending on where the Moon is along its orbit, we see different amounts of its illuminated side The Zodiac constellations are A. directly above the North Pole and South Pole B. distributed fairly evenly over the northern portion of the celestial sphere C. aligned with the Earth's orbit around the Sun D. distributed fairly evenly over the entire celestial sphere
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