Which of these lines or points is always directly overhead, no matter the location on Earth?
A) celestial equator
B) ecliptic
C) zenith
D) 90° north declination

Question

Quizplus · Accepted Answer

The zenith is the point directly overhead any observer on Earth, regardless of the observer's location. It is defined as the point in the sky where the line extending from the observer's position intersects the celestial sphere.

Which of These Lines or Points Is Always Directly Overhead