Get ready for spring! The vernal equinox arrives on Sunday morning, marking the beginning of warmer, longer days in the Northern Hemisphere, and shorter, colder days in the Southern half.
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These celestial events, equinoxes and solstices, are caused by the Earth’s 23.5-degree tilt on its axis and its constant motion. It only happens twice a year when the sun crosses the equator. During the spring, or vernal equinox, the Northern Hemisphere goes from tilting away from the sun to bending toward it. That moment is the zero point of the sidereal time system, which astronomers use to locate heavenly objects. It’s based on how fast our planet is rotating.
In Western Christianity, the vernal equinox is used to calculate Easter, which is the first Sunday following the first full moon on or after the March equinox, April 18. For Faherty, she plans to celebrate all day – wake up early to watch the sun rise, and watch the sun in the sky all day until it disappears beneath the horizon line.
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