Tonight while you're celebrating the end of winter look up because the first day of spring will have a supermoon.

Today is the Vernal Equinox marking the start of spring which will happen at 5:58 PM shortly before the sun sets. The Full Worm Moon, the last supermoon of the year, will rise at 6:54 PM and set at 7:43 AM tomorrow.

The equinox is the time twice a year when the center of the sun passes directly over the equator and when day and night are of equal length.

A supermoon happens when the full moon phase coincides with the moon's closest point in its orbit to Earth making it appear larger and brighter than normal.

According to The Old Farmers Almanac, Native Americans named the March full moon for the earthworms that would appear as the ground thawed in turn bringing birds and spring.

 

Source: The Old Farmers Almanac