The plane of the ecliptic intersects the celestial equator
A) everywhere because these are two different names for the same plane.
B) at two points, the summer and winter solstices.
C) at two points, the vernal and autumnal equinoxes.
D) along the prime meridian.

Question

Quizplus · Accepted Answer

The plane of the ecliptic intersects the celestial equator at two points, the vernal (spring) and autumnal (fall) equinoxes. These are the points where the Sun crosses the celestial equator, leading to nearly equal day and night durations worldwide.

The Plane of the Ecliptic Intersects the Celestial Equator