'Full worm supermoon' (and asteroids) set for the first day of spring

A lunar eclipse is seen in Tokyo Jan. 31 2018

'Full worm supermoon' (and asteroids) set for the first day of spring

According to a NASA Watch the Skies blog post, this will be the third super moon of the year. What's the science? Well according to NASA, these are a few of the contributing factors that make a tiresome, regular moon; super.

No matter what timezone you're in, look out for the supermoon at 9:43 pm ET on Wednesday.

Winter ends Wednesday at 5:58 p.m., the moment of vernal equinox.

A supermoon refers to either a new or full moon that coincides with the time of the month when the moon is at the closest point to Earth in its orbit, according to EarthSky.

A full moon and the spring equinox ending up so close to each other is a special treat.

The term "worm moon" is typically given to the first full moon in March, according to the Old Farmer's Almanac. However, for those who couldn't get enough of February's "super snow moon" or January's "super blood wolf moon" eclipse, the "super worm moon" will be the last opportunity for a while to see a supermoon.

The supermoon comes a day after the moon reaches perigree, the closest point to Earth, making the full moon a supermoon, which makes it appear slightly larger than the full moon usually does, Space.com reports.

Having three or four supermoons in a year is normal, Sykes said, and having all of them fall in the beginning of the year is just based on the moon's cycle.

Although a supermoon does not appear bigger than an average moon to the human eye - except when it looms near the horizon - it does tend to appear brighter.

From the United Kingdom, the moon should reach 100% illumination at 1.43am on Thursday. Clear skies are expected.

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