What is the period of revolution of the moon?
94704
The two sites below should give you more than enough information:
882101
"Blue Moon" is when two full moons happen in one calendar month. Since the phase period of the moon is 29.5 days, you usually only have one full moon month, but each month it is a little earlier than the previous month. About once a year or so, you get two full moons in the same calendar month, and the second one is called the "blue moon". There is no physical difference or appearance difference of the moon at this time, it just looks like a regular full moon: circular and white with gray patches.
187789
In fact, million years ago, the moon's rotation is not exactly in sync with it's revolution, it's rotation was faster back at those days and the rotation is not synced. It is because of the relational effect of the gravity of earth to moon that slowed down the moon to a stop and synced its rotation to earth's revolution. It is not purely a coincidental as a lot of moons of other planets is also "phase locked" to the planet's it's revoluting
788285
Try this site - virtual reality moon phase pictures for any date and time from 1800 – 2199 AD.\n\nhttp://tycho.usno.navy.mil/vphase.html
807753
. . also the moon rises about 52 minutes later each day/night. You can also see it during the day.\nThe phases are in constant motion. Waxing (getting fuller) and waning (getting smaller).\nDon't forget to check for Lunar Eclipse's. Try NASA.gov
458339
It takes the earth 365.25 days to complete one revolution of the sun.
116642
I think you must mean the "lunar" month, which would mean the time from one "new moon" to the next "new moon" or one "full moon" to the next "full moon", in other words, the time between two successive new moons or full moons.  There are many variations.  Check out http://en.wikipedia.org/wiki/Lunar_month for more detail.
287587
The phases of the moon are caused by the relative positions of the earth, sun, and moon. The moon goes around the earth, on average, in 27 days 7 hours 43 minutes. \n\nThe sun always illuminates the half of the moon facing the sun (except during lunar eclipses, when the moon passes thru the earth's shadow). When the sun and moon are on opposite sides of the earth, the moon appears "full" to us, a bright, round disk. When the moon is between the earth and the sun, it appears dark, a "new" moon. In between, the moon's illuminated surface appears to grow (wax) to full, then decreases (wanes) to the next new moon. \n\nThe edge of the shadow (the terminator) is always curved, being an oblique view of a circle, giving the moon its familiar crescent shape. Because the "horns" of the moon at the ends of the crescent are always facing away from the setting or rising sun, they always point upward in the sky. It is fun to watch for paintings and pictures which show an "impossible moon" with the horns pointed downwards.
882017
No one who has answered so far got it right.  The answer is TRUE, and the reason is because the moon rotates on its axis in exactly the same amount of time it takes it to make one revolution around the earth.  No one seems to get this.
1056449
Yup, it's orbital period is the same as its rotational period due to tidal forces. \n\nAs it orbits the Earth it spins on it's axis, it takes the same amount of time to make one rotation as it does one orbit so it looks like it's not spinning at all from down here.
991387
The phases of the moon are due to the portion of the moon that is being iluminated by the sun. The phases vary according to the relative position of the moon, Earth and sun. The moon is always there but once a moths it becomes invivible, this phase is know as New moon (or Dark moon), it occurs when the Sun and the moon are on the same side; therefore the the "dark" side of the moon is facing Earth so it appears to be invicible.
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July 11 at  03:02, Universal Time.\n\nThere's a table of the moon's phases on the Web site of the United States Naval Observatory:\n\nhttp://aa.usno.navy.mil/data/docs/MoonPhase.html
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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. \n\nThe Jet Propulsion Laboratory produces mathematical models for the orbital motions of the Sun, Moon and planets. These are the models that are used to navigate spacecraft such as Voyager, Galileo and Cassini over billions of kilometres to rendezvous with the planets of the outer solar system. \n\nThese models are used, indirectly, as the basis for the Blue Moon calculator. They are very accurate indeed between the years 1800 and 2100, but like any mathematical models based on real data which contains measurement errors, their accuracy will decrease as the date is extended further into the past or future. \n\nIn particular, as the Moon slowly spirals away from the Earth, its angular speed is decreasing. This is called tidal deceleration. It amounts to about 25 arc-seconds per century per century, but we don't know the exact figure, and so we can't calculate the longitude of the Moon in its orbit with absolute certainty far into the future. An error of just 1 arc-second per century per century amounts to an uncertainty of more than an hour and a half in the time of Full Moon five thousand years ago or five thousand years hence. \n\nThere's another problem: the Earth itself, whose rate of rotation is not constant. \n\nModels of the orbital motion of the Sun and Moon use a timescale called Dynamical Time, but civil timescales based on Greenwich Mean Time (GMT) are defined in terms of the Earth's rotation. The Earth is slowing down, like an old-fashioned clock that needs to be wound up. As a result, GMT and Dynamical Time are drifting apart. \n\nThe Blue Moon calculator and the Moon Phase calculator both give dates and times expressed in GMT, using an approximation to the difference between GMT and Dynamical Time. This approximation is a quadratic expression for dates after the year 2000, and that will be reasonably accurate for a few decades into the 21st century.
72912
the moon goes thru a cycle of 4 phases each month(one a week). They are first, full, third and new.\nThink of a clock(with the earth in the very middle and the sun off to the left).Then first quarter would be down at 6, full would be over at 3, third would be at 12 and new(which is between the earth and the sun) would be at 9.
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to tell you with approximate data the earth completes it revolution in 356 and a quarter days. This 1/4 adds up to one full day every 4 years. Thus we need to have this compensatory extra day every four years.
276566
When 2 full moons occur in any calendar month which happens on average once every 2.5 years. See:\n\nhttp://scienceworld.wolfram.com/astronomy/BlueMoon.html
209659
The phase of the moon changes with your location. Here is a page to help you figure it out for where you live...\nhttp://aa.usno.navy.mil/data/docs/RS_OneDay.html