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2006-10-03 06:14:30 · 4 answers · asked by sueet2b 4 in Science & Mathematics Astronomy & Space

4 answers

Since there are about twelve lunations (synodic months) in a solar year, this period (354.37 days) is sometimes referred to as lunar year, corresponding to thirteen sidereal months (355.18 days). Lunisolar calendars that try to reconcile lunations with the solar year have to operate with intercalary months, resulting in a thirteen-month year every two or three years.

In England, a calendar of thirteen months of 28 days each, plus one extra day, known as "a year and a day" was still in use up to Tudor times. This would be a hybrid calendar that had substituted regular weeks of seven days for actual quarter-lunations, so that one month had exactly four weeks, regardless of the actual moon phase. The "lunar year" is here considered to have 364 days, resulting in a solar year of "a year and a day".

As a religious tradition, the thirteen-month years survived among European peasants for more than a millennium after the adoption of the Julian Calendar.

The "Edwardian" (probably Edward II, late 13th or early 14th century) ballad of Robin Hood for example has "How many merry months be in the year? / There are thirteen, I say ...", emended by a Tudor editor to "...There are but twelve, I say....". Robert Graves in the introductions to Greek Myths comments on this with "Thirteen, the number of the sun's death-month, has never lost its evil reputation among the superstitious."

The link between women's month-ly cycles is historic as well as it improbably is about the same length.

The astronomical impobablilty (from of all the solar system's potential configurations), for the earth's satellite would on occasion yeald a nearly perfect solar eclipse also causes the philosopic scientist to question exactly what kind of place and existence we experience.

From a socialists school of thought the moon and its cycles explain some religeous belief orgins and effects on society development for those that worship the created rather than a creator(pagan v. christian)creationism.

The Moon and its cycles are the source for much poetry,song,culture and yes superstition.

2006-10-03 06:16:25 · answer #1 · answered by Brian S 2 · 1 0

The lunar calendar was commonly used in ancient times. However, the ancients had to add an extra (intercalary) month every once and a while to adjust to the position of the sun since the lunar calendar lagged behind approximately 11 days per solar year, (365 - 354 = 11 days). The Jewish calendar today is a luni-solar one based on 28-year-solar and 19-year-lunar cycles. This complex calendar system adds a second 12th month every two or three years (called "Second Adar"); thus there are 13 months in a modern Jewish calendar year every second or third year, (i.e., 384 days).

The Islamic religious calendar does not adjust to the sun at all. It has a fixed 12-month lunar-year. Hence, it lags behind our solar year about 11 days in a year with the effect that every few decades it lags behind an entire year!

2006-10-03 14:10:04 · answer #2 · answered by Anonymous · 0 0

Since there are about twelve lunations (synodic months) in a solar year, this period (354.37 days) is sometimes referred to as lunar year, corresponding to thirteen sidereal months (355.18 days). Lunisolar calendars that try to reconcile lunations with the solar year have to operate with intercalary months, resulting in a thirteen-month year every two or three years.

In England, a calendar of thirteen months of 28 days each, plus one extra day, known as "a year and a day" was still in use up to Tudor times. This would be a hybrid calendar that had substituted regular weeks of seven days for actual quarter-lunations, so that one month had exactly four weeks, regardless of the actual moon phase. The "lunar year" is here considered to have 364 days, resulting in a solar year of "a year and a day".

2006-10-03 13:20:58 · answer #3 · answered by star 2 · 0 0

It is a unit used to measure distance,despite the use of the time-connected word "year".It is the distance covered by light in the space of a year!We use the term "lunar year" to measure distances so big, that it is practically impossible to measure them with conventional units(metres,Km,even M/Gm)

2006-10-03 13:19:59 · answer #4 · answered by Demi 2 · 0 0

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