what direction does the moon raises?

Answer 1

The moon rises in the west and takes about 14 days to reach the eastern part of the sky (and to become a full moon). It keeps moving eastward until is out only in the daytime and becomes a new moon. It only appears to move from east to west because it rotational period around the Earth is much longer (28 days approx.) than Earth's one day of revolving on its axis.

Answer 2

Navigators use the time when the calculated zenith distance is exactly 90 degrees (i.e. when the calculated altitude is 0) as the moment of moonrise.

At that moment, the azimuth (the direction of the Moon, measured from North, going Eastward) is given by the equation:

Cos(Z) = Sin(DEC) / Cos(LAT)

Where Z is the azimuth, DEC is the declination of the Moon and LAT is the latitude of the observer.

Z: 0 = North, 45=NorthEast, 90=East, 135=South East, 180=South.
DEC: positive for North, negative for south.
For LAT, same thing -- Cos(LAT) is always positive.

We can see a few things just by looking at the equation:

If DEC = 0, then Sin(DEC)=0 and 0 over anything is 0. This means that Z=90 degrees (because Cos(90)=0 ), and the Moon rises exactly due East.

If the absolute value of (DEC+LAT) is greater than 90 degrees, then the equation does not work (it will give you an impossible value for Cos(Z) ) and that is OK because when that happens, there is no moonrise. For example, you are at 70 S latitude, and the moon's declination that day is 25 S, then ABS(-70+-25)=ABS(-95)=95 is more than 90. The moon stays above the horizon (no moonset, no moonrise)

If LAT=90 (you are at the pole), then Cos(LAT)=0 and you are trying to divide by 0. That is OK as the usual idea of azimuth (direction) does not apply at the pole.

If DEC is south, then Sin(DEC) is negative, making the value for Cos(Z) negative. This means that the angle Z will be greater than 90 degrees. That is OK because it means that the Moon rises on the south side of East.

Answer 3

The earth is rotating faster than the moon is orbiting the earth: approximately 24 hours per rotation of the earth, and approximately 656 hours per orbit of the moon. This means you could think of the moon as a stationary object, just like you do with the sun and stars. The moon rises in the east, just like the sun.

The orbit of the moon is in fact the other way around. If the earth would not rotate, the moon would rise in the west!

Answer 4

Did you want to say -
What direction does the moon rise (to/from)?

Answer 5

It rises in the east and sets in the west, just like the sun and the stars.

Because the earth rotates from west to east, everything in the heavens look like they rise east to west.

Answer 6

In the east. Same as the Sun.

Answer 7

Like everything in the sky, it rises from the east.

Answer 8

east

Answer 9

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