Dec 22 Long Night Short Day corresponds to which astronomical event?

• A. Winter Solstice
• B. Summer Solstice
• C. Equinox
• D. Long Night Short Day

Answer: (A)

The key idea is identifying when daylight is at its minimum due to Earth's tilt. In the Northern Hemisphere, around December 21–22 the Sun is at its southernmost position relative to the celestial equator, so the solar day is shortest and the night is longest. This is the winter solstice, and after this date the days begin to get longer again as the Sun’s path climbs higher in the sky.

This differs from the equinox, when day and night are about equal, and from the summer solstice, which has the longest day of the year. The phrase Long Night Short Day describes the effect of the winter solstice rather than naming a separate event.