If you are like me then you enjoy nature and what it has to offer us in beauty. As a young girl I would spend hours admiring the stars and the moon, just wondering how amazing it is that these spec of dots in the sky could provide so much light on a dark night. I also remember seeing bugs bunny on the moon or a face, I could never quite tell whose face it was but just the trick of the mind seeing a face there was fascinating to me.
The super-moon on the other hand is a different story.
The term super-moon was coined by astrologer Richard Nolle in 1979 and according to Nolle the term super-moon can be defined as ‘a new or full moon which occurs with the at or near within 90% of its closest approach to Earth in a given orbit or perigee. In short this means that the Earth, Moon and Sun are aligned, with the moon closest to Earth.
It all sounds a little weird doesn’t it? However, the full moon that passed on November 14 is much closer with perigee than previous moons, in fact this has been the moon’s closest point to Earth in over 68 years. Thus, in light of this it is save to say that Nolle’s original definition of the super-moon, allows for a wide latitude between full moon and perigee. The last full moon happens only about one and one-half hours after the moon reaches perigee, the moon’s closest point to Earth for this month and year. At perigee, the moon lies only 221,524 miles away. Two weeks before, on October 31, the moon swung out to apogee which is the farthest point for the moon this month and year at 252,688 miles away.
November 14 marks the moon’s closest encounter with Earth in over 68 years, since January 26, 1948. The next estimated perigee will be November 25, 2034 which is estimated to be 356,448 kilometers from Earth. This just goes to show that not everything is about science and maybe there is a little truth to astrology.
Even the proximity of full moon with perigee isn’t all that rare. The extra-close moon in all of these years – 2011, 2012, 2013, 2014, 2015 and 2016 – finds the full moon taking place at or nearly the same hour as lunar perigee. More often than not, the closest perigee of the year also called proxigee comes on the one day of the year that the full moon and perigee closely coincide.
The table below shows the years in which the moon as been the closest to the Earth.
Moon closest to Earth
Year | Date | Distance |
2011 | March 19 | 356,575 km |
2012 | May 6 | 356,955 km |
2013 | June 23 | 356,991 km |
2014 | August 10 | 356,896 km |
2015 | September 28 | 356,877 km |
2016 | November 14 | 356,509 km |
You may ask yourself how often is the moon both full and close to Earth well the closest full moons occur 14 lunar cycles otherwise known as synodic months where 14 lunar months almost equals 15 returns to perigee. The term lunar month refers to the time period between successive full moons, a period of 29.53059 days. An anomalistic month refers to successive returns to perigee, which is a period of 27.55455 days. Therefore, 14 x 29.53059 days = 413.428 days and 15 x 27.55455 days = 413.318 days.
This time period is equal to about 1 year, 1 month, and 18 days. The full moon and perigee will realign again on January 2, 2018 counting from November 14.
Looking further into the future, the perigee full moon will come closer than 356,500 kilometers for the first time in the 21st century (2001-2100) now isn’t that something to behold, I for one can’t wait to experience this one on November 25, 2034. The closest full moon of the 21st century will be on December 6, 2052 (356,425 km).
For the moon to come closer than 356,400 kilometers which is 221,457 miles from the Earth is quite a feat. In fact, this won’t happen at all in the 21st century (2001-2100) or the 22nd century (2101-2200). The last time the full moon perigee swung this close to Earth was on January 14, 1930 (356,397 km), and the next time won’t be till January 1, 2257 (356,371 km).
The super-moon of March 19, 2011 (right), compared to an average moon of December 20, 2010 (left). Image via Marco Langbroek, the Netherlands, via Wikimedia Commons.
With all full moons comes larger-than-usual tides, and perigee full moons bring the highest and lowest tides of all. Each month, on the day of the full moon, the moon, Earth and sun are aligned, with Earth in the middle. The lineup of the sun and moon creates spring tides. Spring tides climb up especially high, and, on the same day, low tides plunge especially low.
The extra-close full moon accentuates these monthly full moon spring tides all the more. Storms sometimes occur from these spring tides too so it is always good to keep an eye on the weather during a full, especially if you live close to a shoreline or flood areas.
We will see the highest tides follow the crest of the moon’s full phase on the day of the super-moon by a day or two.
The full moon that passed on November 14, 2016, is the closest and largest full moon of this year. By a new definition one that has entered the world of astronomy from astrology many people will call it a supermoon. There are three full moons in 2016 that meet the definition of a supermoon one in October, November and December. But this November 14 full moon will be the most super of all three super-moons we could cal even call it a super-duper moon.
Fun Facts: It is said that all super-moons have a different names based on different calendar months or seasons of the year. Some almanacs like to give each month a special full moon name. Other almanacs like to reference full moons relative to seasonal markers, as defined by equinoxes and solstices. Both have their roots in folklore. Both the monthly names and the seasonal names necessarily favor either the Northern or Southern Hemisphere. That’s because the moon has different characteristics in the two hemispheres, at opposite times of year. For example, the Harvest Moon is the full moon closest to the autumnal equinox. So it falls in September or October for the Northern Hemisphere, and it falls in March or April for the Southern Hemisphere.
Full moon via EarthSky Facebook friend Lee Capps
Northern Hemisphere full moon names by month:
January: Old Moon, Moon After Yule
February: Snow Moon, Hunger Moon, Wolf Moon
March: Sap Moon, Crow Moon, Lenten Moon
April: Grass Moon, Egg Moon, Pink Moon
May: Planting Moon, Milk Moon
June: Rose Moon, Flower Moon, Strawberry Moon
July: Thunder Moon, Hay Moon
August: Green Corn Moon, Grain Moon
September: Fruit Moon, Harvest Moon
October: Harvest Moon, Hunter’s Moon
November: Hunter’s Moon, Frosty Moon, or Beaver Moon
December: Moon Before Yule, or Long Night Moon
Southern Hemisphere full moon names by month:
January: Hay Moon, Buck Moon, Thunder Moon, Mead Moon
February (mid-summer): Grain Moon, Sturgeon Moon, Red Moon, Wyrt Moon, Corn Moon, Dog Moon, Barley Moon
March: Harvest Moon, Corn Moon
April: Harvest Moon, Hunter’s Moon, Blood Moon
May: Hunter’s Moon, Beaver Moon, Frost Moon
June: Oak Moon, Cold Moon, Long Night’s Moon
July: Wolf Moon, Old Moon, Ice Moon
August: Snow Moon, Storm Moon, Hunger Moon, Wolf Moon
September: Worm Moon, Lenten Moon, Crow Moon, Sugar Moon, Chaste Moon, Sap Moon
October: Egg Moon, Fish Moon, Seed Moon, Pink Moon, Waking Moon
November: Corn Moon, Milk Moon, Flower Moon, Hare Moon
December: Strawberry Moon, Honey Moon, Rose Moon
About once every 19 years, February has no full moon at all.
However, in 7 out of every 19 years, two full moons will fall in the same calendar month. And in a year where February has no full moon at all, like in the year 2018, you can actually have two full moons in January and two full moons in March, in which case you have 8 calendar months with 2 full moons in one 19-year lunar cycle. The second of the month’s two full moons is popularly referred to as a Blue Moon
Full moon from EarthSky Facebook friend Fernando Alvarenga in San Salvador.
Full moon names by season (Northern or Southern Hemisphere):
After the winter solstice:
Old Moon, or Moon After Yule
Snow Moon, Hunger Moon, or Wolf Moon
Sap Moon, Crow Moon or Lenten Moon
After the spring equinox:
Grass Moon, or Egg Moon
Planting Moon, or Milk Moon
Rose Moon, Flower Moon, or Strawberry Moon
After the summer solstice:
Thunder Moon, or Hay Moon
Green Corn Moon, or Grain Moon
Fruit Moon, or Harvest Moon
After the autumnal equinox:
Harvest Moon, or Hunter’s Moon
Hunter’s Moon, Frosty Moon, or Beaver Moon
Moon Before Yule, or Long Night Moon
There are usually three full moons in between an equinox and a solstice, or vice versa. Seven times in 19 years, four full moons fall in a single season. In that case, the third of a season’s four full moons is also called a Blue Moon. The next Blue Moon by this definition happened on May 21, 2016.
Full moon via Michelle Eve Photography.
Northern and Southern Hemisphere full moon names, listed first by month and then by season.
I found these findings about the full moon to be very interesting I had no idea that the moon that I have loved to admire since I was a child had so many different meaning and variations.
earthsky.org/tonight/most-super-supermoon