What is the exact length of the lunar phase cycle? What is the exact length of the anomalistic month? Same?
553219
lunar phase cycle is approximately 29.5 days \nanomalistic month is 27 days 13 hours 18 minutes and 33.2 seconds long
475015
Pictures on this website: http://aa.usno.navy.mil/faq/docs/moon_phases.html\n\nDon't go crazy on the full moon now, ya hear?! =) (I know I do.)
174140
the lunar cycle is just about 28 days, not exactly though. Allowing for it to be 28. divide 365 by 28 and you have 13.  So depending on what phase of the moon you have at the start of the year, you will have 13 of them that year. Consequently each year will start with a different phase so you will have 13 different ones each year. Allow for the fact that the lunar month is not exactly 28 days even adds to the situation. On occasion you will have two full moons in one calender month, a "Blue Moon".  Each full moon has a name for it based on folk lore and legends. Harvest moon, the full moon closest to autumn to allow light for harvesting later....etc. A tidbit of info....the moveable holiday of Easter can always be determined as the first Sunday, after the first Full Moon after the beginning of Spring.
169211
In the northern Hemisphere the days are longer during the summer months and shorter in the winter months.  The opposite is true in the Southern Hemisphere.  To get exactly length of the day I think you would need a computer program.  The calculation seems a bit complicated.
1186834
most calenders do not show the lunar phases, but some do.  fewer calenders show the time when the moon is full.  the full moon can occur at any time of day and does not depend on an observer's local time.  the program called "moon tool" will show the time and date of the lunar phases.\n\nhttp://www.fourmilab.ch/moontoolw/\nhttp://www.pure-mac.com/astronomy.html
550303
Moon/Earth Comparison\nBulk parameters\n\n                                   Moon         Earth      Ratio (Moon/Earth)\nMass (1024 kg)                    0.07349       5.9736     0.0123    \nVolume (1010 km3)                 2.1958      108.321      0.0203\nEquatorial radius (km)           1738.1        6378.1    0.2725      \nPolar radius (km)                  1736.0        6356.8    0.2731\nVolumetric mean radius (km)        1737.1        6371.0    0.2727\nEllipticity (Flattening)          0.0012        0.00335    0.36    \nMean density (kg/m3)               3350          5515      0.607      \nSurface gravity (m/s2)            1.62          9.80       0.165    \nSurface acceleration (m/s2)       1.62          9.78       0.166    \nEscape velocity (km/s)            2.38         11.2        0.213    \nGM (x 106 km3/s2)                 0.0049        0.3986     0.0123 \nBond albedo                       0.11          0.306      0.360\nVisual geometric albedo           0.12          0.367      0.330    \nVisual magnitude V(1,0)          +0.21         -3.86          -\nSolar irradiance (W/m2)            1367.6        1367.6    1.000      \nBlack-body temperature (K)          274.5         254.3    1.079      \nTopographic range (km)               16            20      0.800      \nMoment of inertia (I/MR2)         0.394         0.3308     1.191\nJ2 (x 10-6)                     202.7        1082.63        0.187  \nRef The foll link
225731
Here is a very simple and precise explanation with good illustrations\nhttp://home.hiwaay.net/~krcool/Astro/moon/moonorange/
127913
You can find the US Naval Observatory list for 2006 phases of the moon here:\nhttp://aa.usno.navy.mil/data/docs/MoonPhase.html
970700
It's not exact, or we wouldn't see phases of the moon. See, the moon is a significant influence on times of ebb and flood tides, and if it was perfectly synchronized with our rotation, then it would be the same phase every day.\n\nFurthermore, it changes every day at each location. For the most part, you can count on a 5 or 6 hour flood stage from low to high tide, followed by a 5 or 6 hour ebb stage back to low tide.\n\nOther forces effect tides (such as the sun's gravity), but as far as time of day for high and low tides, nothing compares to the moon's gravitational tug.
131420
For the month of April, the moon will begin as a new moon sliver on the first, progressing to the first quarter on the 6th.  The full moon occurs on the 15th, the last quarter on the 22nd and a new moon on the 29th.
725034
An interesting question, which requires thinking carefully about how our common measure of time is related to certain astronomical (solar) positional recurrences.  A lot of people (though not all) have answered you as though the year were exactly 365.25 days long on average, but it's more subtle than that.  \n\nThere are in fact two particular "years" of interest:\n\n1. The sidereal year (period of the Earth's revolution about the Sun with respect to the stars, i.e. operationally, the time for the Sun to apparently "return" to the same position against the stars, after a "year" [crudely 365+ days], as viewed from Earth):\n\n365.256366... days.\n\n2. The tropical year (time for the Sun to cross the celestial equator [the projection of the earth's equator in space] again [e.g. from south to north] after a "year" [crudely 365+ days]).  Alternatively, "the period of revolution of the Earth about the Sun with respect to the Vernal Equinox":\n\n365.242199... days.\n\n(Both figures are quoted to an accuracy sufficient for our present purposes.)\n\nThese two different "years" differ by just ~20.4 minutes, owing to the precession of the Earth.  (One full precession of the Earth's spin axis in space takes ~25781 years.  This long, latter number of years is in fact equal to 365.25 or so days divided by the (essentially observed) "motion of the Vernal Equinox along the celestial equator," at the rate of ~20.4 minutes per year as just mentioned --- check it out.  [Sorry about the technical language, but this is technical stuff.]) \n\nIt's actually the tropical year that determines the rate at which the observed seasons recur, and since we want them to be "at the same time of the year," our long-term timekeeping is geared to the tropical, not the sidereal year.\n\nNotice that at 365.242199 days, this "tropical year" is just a tad short of 365.25 days.  That's why, instead of the simplistic idea of a leap year occurring every 4 years (and having an extra day that accounts "exactly" for 4 x the extra 0.25 days), there will come a time when we've overcounted a bit.  \n\nFor example, after 100 years, we should have had 100 x 0.242199 "extra days," or 24.2199 days.  The "one more day every 4th year" rule would give us 25 extra days per century, ~ 0.78 days more than needed.  If we could drop just 1 day then, that would be better --- but then we'd be under by ~ 0.22 days --- aha! --- close to a quarter of a day!  That's why the revised rule comes in that complete century years are NOT leap years --- UNLESS they're divisible by 400!  (Figure out for yourself from the 365.242199 figure how well this works in the long run.  I think you'll find that the calendar, on average, doesn't get a full day out of step with these revised rules until something like 3,300 years have gone by!) \n\nO.K., so maybe this is much more than you wanted to know.  However, with the right understanding of what the length of the year we usually measure is, 365.242199... days, then 1 million days is 10^6 divided by this, or 2737.90926... years, or 2737 years and 332.10... days.***\n\n*** Remember, this is a mathematically average result, for essentially perfect intervening TROPICAL years (to the accuracy given).  If you want to know it in CALENDAR years and a specific whole number of days, the answer will vary slightly about the preceding result, according to when you start counting. This variability is not just because of the usual "every fourth year is a leap year"  pattern, but also because of the way that century years aren't all treated in the same manner.  It's awkward to give a general rule!  \n\nLive long and prosper.
873536
There is one full moon in a lunar month. When thre is 2full moons in a calendar mont it is called a blue moon. Hence the saying once in a blue moon, not very often.
178225
Try this.\nhttp://www.calculatorcat.com/moon_phases/moon_phases.phtml
195332
If you want to fake a moon-log you will also need someone who did it at your exact same latitude.  The tilt of the moon (not phase, just tilt) varies with the observer's latitude on the earth.\n\nSuch a shame... almost everyone forgets that little fact, and hence fail badly when they fake their observation journals.
16493
Actually, since a full moon happens about once every 28 days, in a 365 day callender year, it can happen anywhere from 12 to 14 times.  However, neither of those numbers are precise, since the rotations don't divide evenly into 24 hour days.  The real number of the period of the moon's rotation into that of the earth's is something like 12.95
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
570633
http://www.cwo.com/~lunarlab/  this is a "moon" site.Too many questions there in your question.