Exactly how many full moons do we have in one year. (one rotation of earth around the sun)
2007-11-08 05:29:32 · 18 answers · asked by Anonymous in Science & Mathematics ➔ Astronomy & Space
There is one every 28 days, so it can be 12 or 13, depending on when the first full moon of the year is.
2007-11-08 05:32:58 · answer #1 · answered by alb_4 3 · 2⤊ 4⤋
In one solar year we experience just over 12 lunar months. So you will have 12 a year most years and occasionally 13.
In the years with 13 you will have one month with two full moons in which case the second full moon is called a blue moon.
If the blue moon occurs in very late January you can actually have 2 blue moons in a single year because February is shorter than an lunar month, March will also have a blue moon.
2007-11-08 05:39:47 · answer #2 · answered by Brian K² 6 · 1⤊ 1⤋
The average interval between Full Moons is about 29.5 days, whilst the length of an average month is roughly 30.5 days. This makes it very unlikely that any given month will contain two Full Moons, though it does sometimes happen.
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In 365 days of a year, we have 12 months and therefore 12 full moons, but occasionally we get a blue moon, a 13th full moon .
Blue Moons 2004–2010
July 31, 2004
Second full moon in month
August 2005
Third full moon in a season of four full moons
May 2007
Second full moon in month
May 2008
Third full moon in a season of four full moons
Dec. 2009
Second full moon in month
Nov. 2010
Third full moon in a season of four full moons
2007-11-08 05:38:00 · answer #3 · answered by QuiteNewHere 7 · 1⤊ 1⤋
235 full mooon each 19 years.
12.368266 luner months / year
The 19-year cycle (235 synodic months, including 7 embolismic months) is the classic Metonic cycle, which is used in most arithmetical lunisolar calendars. It is a combination of the 8- and 11-year period, and whenever the error of the 19-year approximation has built up to a full day, a cycle can be truncated to 8 or 11 years, after which 19-year cycles can start anew.
Other good approximations are
136 months each 11 years
235 / 19
4131 / 334
2007-11-08 05:39:18 · answer #4 · answered by DanE 7 · 1⤊ 1⤋
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A moon year is almost 13 "28 day" cycles.
2016-04-08 13:14:50 · answer #5 · answered by ? 4 · 0⤊ 0⤋
12 and 13 sometimes. About one full moon a month.
2007-11-08 05:33:24 · answer #6 · answered by Anonymous · 2⤊ 2⤋
The cycle of moon phases, called a synodic month, lasts approximately 29.53 days. A year is about 365.25 days and 365.25/29.53=12.369. So there are between 12 and 13 full moons in a year.
2007-11-08 05:37:15 · answer #7 · answered by campbelp2002 7 · 5⤊ 2⤋
I've been mooned 3 times this year, but the year isn't over
2007-11-08 05:32:51 · answer #8 · answered by crazgrss 3 · 1⤊ 2⤋
Generaly 12 but sometimes we get 13.
2007-11-08 05:53:03 · answer #9 · answered by Mr. Smith 5 · 1⤊ 1⤋
We have one moon, the same moon, all year long, year in, year out.
The full moon cycle is approx. 29 days. So on average, 12 full moons per year.
2007-11-08 05:32:46 · answer #10 · answered by Richard F 6 · 2⤊ 4⤋