Which of the following directions remains fixed in the sky relative to an observer"s horizon?
A) the direction toward the Sun at noon, over one year
B) the autumnal equinox
C) the zenith
D) the direction toward the Moon at noon, over one month

Question

Quizplus · Accepted Answer

The zenith is the point directly above the observer's head and remains fixed in the sky relative to the observer's horizon. The direction toward the Sun (A) and Moon (D) changes over time due to the Earth's rotation and revolution. The autumnal equinox (B) marks a specific point in the Earth's orbit around the Sun but does not remain fixed in the sky relative to the observer's horizon.

Which of the Following Directions Remains Fixed in the Sky