That's a "Blue Moon" . . . the second Full Moon in the same CALENDAR month.
The cycle of moon-phases is 29 days, so there has to be a full moon on the 1st or 2nd of the month,
in order to have another one before the end of the month.
December 2009 will have Full Moons on the 2nd and the 31st. That will be the first time in a little over 3 years.
A full moon occurs approximately every 29.5 days, which is close to the length of a calendar month. Because the timing of a full moon doesn't perfectly align with our calendar months, occasionally there will be two full moons in one calendar month, leading to a phenomenon called a "blue moon."
Yes sometimes there are 2 full moons during one month. These do not happen very often and the second full moon is called a 'blue moon', hence the expression, "once in a blue moon".
Venus has no moons at all, not even one.
There are two types of months, or calendars, that astronomers use: the lunar and the solar. The solar months are the more familiar calendar and one example of a solar month is January. Lunar months are dependent on the cycles of the moon. One month is considered the time it takes for two occurrences of the same cycle to occur, such as two new moons or two full moons.
There is usually 1 full moon in a month, making 12 full moons in a year. But it can also be different because our calendar is not always correct for when they will come!
January, 2012 has one full moon. Two full moons in one month only happens once in a blue moon.
A blue moon.
12. one every month
No. There are two New moons, on the 1st and 31st of the month,and one Full Moon, around the 16th and 17th.
if in one month there is one full moon then in one leap year 48 full moons 4 multiplied by 12= 48 years multiplied by months=number of moons
The full moon only actually lasts one day, so only one day in a month is there a full moon (although it will look full for a few days).
A Blue Moon, that is if you mean two full moons in one month.
Can I share this question please?
How many full moons per month? Usually, one, but it is possible to have two, as there are 13 lunar months and 12 calendar months in a year. When do full moons occur? The moon revolves around the earth roughly once each month. (Moonth). When the moon is on the opposite side of the earth from the sun, it catches the full sunlight, making it look big and round. When the sun and moon are on the same side of the earth, all we see in the lunar night side. This is called the "new" moon. Half moons result when the earth is at roughly right angles to the moon and sun.
Because there is one full moon every 29 days, and each month is either 30 or 31 days. So February (with only 28 or 29 days) can NEVER have two full moons, and two full moons in one calendar month will only happen about once every 29 months; call it once every 2.5 years on average.
A blue moon is a second full moon in a calendar month. A blue moon is also the third of four full moons in one season. There was no second full moon in any month in 2005, but there was a third full moon in a season with four full moons. That happened on the 19th of August 2005.
The common name for the second full moon in a calendar month is a "blue moon". Pop quiz; what month can NEVER have a blue moon? Answer: February.