Predicting Weather By The Moon - Xavier University Libraries

Weather By The Moon
side the Tropics, that it now covers parts of the Earth’s
surface that approach the polar regions.
The declination of a star does not change much in a
human lifetime. However, the declination of the Sun and
4 , 000BC
24.
1deg.
3 , 000BC
24.
0deg.
2 , 000BC
23.
9deg.
MaximumMinimum 4, 000BC
+ 28.
4deg
/ -30.
2deg
+ 18.
1deg
/ -19.
8deg
3, 000BC
+ 28.
3deg
/ -30.
1deg
+ 18.
0deg
/ -19.
7deg
2, 000BC
+ 28.
2deg
/ -30.
0deg
+
17.
9deg
/ -19.
6deg
the Moon change from day to day. The Sun throughout the
year always has roughly the same declination values from
one year’s date to the same date the next year. For example,
at the summer solstice the Sun will always have a declination
value of about +23.5°. At the winter solstice, it
will be -23.5°. At the Equinoxes, the value will be 0°. For
the Moon, during the Maximum Declination, the midwinter
Full Moon will have a declination of about +28°, and
the midsummer Full Moon will be about -29°. The Mini-
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