2007-05-22 04:07:52 · 7 answers · asked by nusumbili 1 in Science & Mathematics ➔ Astronomy & Space
May has 31 days.
Full moons are about 28 days apart.
so if there is a full moon in the first couple of days of May, there will be another one in the last couple of days.the second full moon of any month is called a "blue moon" and this expression has become shorthand for a rare event.
2007-05-22 04:11:28 · answer #1 · answered by rosie recipe 7 · 2⤊ 0⤋
Because the lunar month is shorter than the calendar month. Thus, the full moon on May 2 will be repeated 29 1/2 days later on May 31.
2007-05-22 11:12:39 · answer #2 · answered by Adam G 2 · 0⤊ 0⤋
Since the moon has a "complete phase cycle of 29.5 days average duration", if you have a FULL moon extremely early in the month (especially a long month of 31 days), you will get a second full moon at the end of the month. This is usually referred to as a "blue" moon.
2007-05-22 11:12:56 · answer #3 · answered by Yahzmin ♥♥ 4ever 7 · 0⤊ 0⤋
Because the lunar month is 28 days, rather than 31 (like may).
Happens about once a year, that one month will have 2 full moons.
2007-05-22 11:12:14 · answer #4 · answered by Brian L 7 · 0⤊ 0⤋
In one month the moon rotates the earth 2 times, going through 2 phases of the moon.
2007-05-22 11:16:31 · answer #5 · answered by ghj 1 · 0⤊ 0⤋
That second full moon is the famous 'Blue Moon'. It happens because there are 13 lunar months in a solar year. So once a year, you get two full moons, one near the beginning of the standard month, and one near the end of it.
2007-05-22 11:14:47 · answer #6 · answered by Anonymous · 0⤊ 0⤋
It's a long month when the full moon is in the fist few days.
Thats the only way to get 2 full in a long month
2007-05-22 11:36:32 · answer #7 · answered by mike453683 5 · 0⤊ 0⤋