The celestial prime meridian is an imaginary half-circle running from the north celestial pole to the south celestial pole and crossing perpendicular to the celestial equator at the point of the
A) autumnal equinox.
B) summer solstice.
C) vernal equinox.
D) winter solstice.

Question

Quizplus · Accepted Answer

The celestial prime meridian crosses the celestial equator at the point of the vernal equinox, which is one of the two points where the ecliptic intersects the celestial equator, marking the beginning of spring in the Northern Hemisphere.

The Celestial Prime Meridian Is an Imaginary Half-Circle Running from the North