A blue moon refers to the third full moon in a season with four full moons.
The is no scientifc term for it.
That is precisely the scientific term: "ellipse".
Moon Rider .
There isn't anything special about a "blue moon"; it is just the second full moon in a calendar year, which happens about every other year. The Moon doesn't actually turn "blue". The only thing that causes the Moon to literally appear blue is fine volcanic ash high in the stratosphere.
Blue Moons aren't like solar eclipses - they don't just happen to a certain part of the Earth. A blue moon is just the name for the event where a full moon happens twice in the same month; The second full moon in that month is called a "blue moon". You can see the moon from anywhere on the Earth in a 24 hour period, so yes, the next blue moon will happen "over" the US.
Once in a Blue Moon - 1995 is rated/received certificates of: USA:PG
The term "blue moon" is used when something very rare happens, the most common usage of this term is "Once in a blue moon".
The term "blue moon" refers to the occurrence of two full moons in a single calendar month. The moon itself does not physically turn blue during a blue moon phase; it will look the same as any other full moon. The term "blue moon" is simply a naming convention based on this calendar occurrence.
The term "blue moon" refers to the second full moon in a calendar month, which happens roughly every 2.7 years. The moon does not actually appear blue in color. The phrase "once in a blue moon" has led to the misconception that the moon can appear blue at times.
The blue spot on the moon is a fictional concept and does not hold any scientific significance. It is often used in literature and art to symbolize mystery or imagination.
The second full moon in a month is often referred to as a "Blue Moon," even though it doesn't actually appear blue in color. The term "Blue Moon" is a calendrical rarity and is more of a naming convention than a description of the moon's actual color.
"Blue corn moon" is a reference to a full moon that appears in the month of October, known as the Full Hunter's Moon in the Native American and Algonquin tradition. The term "blue corn" may also refer to a type of corn that has a bluish tint to its kernels.
There are 2 uses of the term 'Blue Moon' - Because the lunar cycle is 28 days and the year has 365 days it works out that there are 13 new moons in a year. The year is divided into 4 seasons - Spring, Summer, Autumn and Winter, each of which would have 3 new moons (which are referred to as the Early Spring Moon, Mid-Spring Moon, Late Spring Moon and so on for the other 3 seasons) and wherever the extra 13th new moon falls it is given the name Blue Moon and this term is used to describe the 3rd new moon out of the 4 in the season. It would look exactly the same as the other 12. The other use of the term Blue Moon is when certain atmospheric conditions, usually smoke at high altitude, gives the Moon the appearance of a slightly blue tint.
The term "blue moon" does not refer to the color, but to an occasional fourth full moon in a season (normally there are three), or alternately, to a second full moon in a month (usually there is one).
*Note* You cannot "see" a "blue" moon as in the colour. It is just a term - see related link. No "blue moons will occur in 2011. December of 2009 - it's when there are two full moons in one month.
The last one was December 31st 1990. The next one is December 31st, 2009.
Usually the first two and the last two letters are blue, making it "once in a blue moon"
A blue moon is any full moon that happens to be the second full moon in a calendar month. Therefore blue moons invariably happen near the end of a month. As the lunar cycle is just about 28 days, it would be a very rare occurrence for one to happen at the end of February, but otherwise they are a natural phenomenon.