What astronomical event marks the longest day in the Northern Hemisphere?
Show answer & explanation
Correct answer: D
Explanation
Solution: The correct answer is Summer Solstice.
Explanation:
☛ The Summer Solstice marks the longest day and the shortest night of the year in the Northern Hemisphere.
☛ It occurs annually around June 20 or June 21 when the Earth's axial tilt leans the Northern Hemisphere most directly toward the Sun.
☛ On this day, the Sun rays fall vertically overhead at the Tropic of Cancer (23.5° N latitude).
☛ In contrast, the Southern Hemisphere experiences its shortest day and longest night on this same date.
Extra Exam-Relevant Facts:
☛ Winter Solstice: Occurs around December 21 or 22, when the Sun is directly overhead at the Tropic of Capricorn (23.5° S), resulting in the shortest day in the Northern Hemisphere.
☛ Equinox: A condition where the Sun is directly over the Equator, making day and night of equal duration across the globe.
☛ Vernal Equinox: Takes place on March 21, marking the onset of spring in the Northern Hemisphere.
☛ Autumnal Equinox: Takes place on September 23, marking the arrival of autumn in the Northern Hemisphere.
☛ Midnight Sun: In regions beyond the Arctic Circle (66.5° N), the Sun does not set below the horizon around the Summer Solstice.
Important One-Liners for Upcoming Exams:
☛ Over which latitude is the Sun directly overhead during the Summer Solstice? → Tropic of Cancer (23.5° N)
☛ On which date does the Winter Solstice typically occur? → December 21 or 22
☛ On which two days of the year are day and night equal throughout the world? → March 21 and September 23
☛ Which region experiences 24 hours of daylight during the June solstice? → Arctic Circle and north of it
☛ What is the orbital position where the Earth is closest to the Sun called? → Perihelion (around January 3)