2025年2月7日 · Vernal equinox, two moments in the year when the Sun is exactly above the Equator and day and night are of equal length; also, either of the two points in the sky where …

In the Northern Hemisphere, the March equinox is called the vernal or spring equinox while the September equinox is called the autumnal or fall equinox. In the Southern Hemisphere, the …

The March equinox – aka the vernal equinox – marks the sun’s crossing above Earth’s equator, moving from south to north. Earth’s tilt on its axis is what causes this northward shift of ...

2017年3月15日 · In 2025, the vernal equinox takes place on March 20, signaling the start of spring in the Northern Hemisphere (and fall in the Southern Hemisphere). The Earth tilts at an …

2025年1月15日 · In the Northern Hemisphere, the spring equinox (also called the March equinox or vernal equinox across the globe) occurs when the Sun crosses the celestial equator going …

2024年3月20日 · On March 19, the vernal equinox will see spring come to the Northern Hemisphere as the sun reaches the spot where the ecliptic and celestial equator cross each …

2024年3月19日 · The vernal equinox arrives on Tuesday, marking the start of the spring season for the Northern Hemisphere.