By Brian Lada AccuWeather meteorologist and writer
18th March 2019, 11:11:18 AM EDT
Wednesday marks the official start of spring in the Northern Hemisphere. Only a few hours later stargazers will be able to see something that will not be visible again by 2020.
"The Vernal Equinox will be released at 17:58 EDT on March 20," said Dave Samuhel of AccuWeather Astronomy Blogger. "The moon will be full just hours later at 9:43 clock. SUMMER TIME.
This full moon will be the third and last supermoon of the year. The next Supermoon will not open until February 9, 2020. Supermoons appear slightly larger and brighter than normal full moons.
"Interestingly, the full moon in March will also be the first full moon of astronomical spring [which began on March 1]," said Samuhel.
The full moon rises behind the New York City skyline, including the Empire State Building, the center, and the Chrysler Building, which is located to the left of downtown Newark, New Jersey, on Sunday, the 12th March 2017, can be seen. (AP Photo / Julio Cortez)
The Vernal Equinox signals the changing seasons around the world, marking the transition from winter to spring in the northern hemisphere and the reversal of summer to fall in the southern hemisphere.
"The equinox occurs when the earth, in its orbit around the sun, reaches a point where the sun's rays fall directly onto the equator," Samuhel said.
"Day and night will be about the same length around the world," he added.
Only a few hours after the astronomical seasons change, the full moon will climb over the horizon.
These two events are unusually close; However, the moon will not look any different during the year than at any other time.
"The last time the full moon and vernal equinox arrived in spring (4 hours apart) was narrow in March 2000, but the last time they took place on the same day was March 20, 1981," said the almanac of the old farmer on his website.
What is a Supermoon?
Dave Samuhel's astronomy blog
The full moon in March is always nicknamed Worm Moon.
"Traditionally, the moon we see in March is called Full Worm Moon. At this time of the year, the soil starts to become so soft that earthworms reappear, inviting robins and birds to feed – a true sign of spring, "said the old farmer's almanac.
Other nicknames for the full moon in March include the Sap Moon, the Crow Moon, and the Lent Moon.
Report a Typo