This section is from the book "Astrology In A Nutshell", by Charles Henry Webber. Also available from Amazon: Astrology In a Nutshell.
Put down at the top of a sheet of paper the month and day of your birth. Never mind year, hoUr, nor your age.
Find on the wonder wheel the little circle of white rings linked together, like this:
This circle of rings Is called "The Circle of Days."On the outer edge of this circle, all around the wheel you will see the names of the months. These names of months denote In the circle the place where the Bun Is on the 1st of every month, any year.
Now find the name of your own month of birth.
Between the name of your month and the name of the next month are six white rings. Bach ring represents five days, and between these rings are marked 5-10-15, etc Now find your day of birth, and that is your birth point on the wheel.
That is your BIRTH POINT, for SUN.
Every point on the wheel must be in some sign, or exactly on the dividing line between two signs. A sign is 30 degrees or 1-12 of the whole wheel. The heavy black lines running outwards are the lines that divide the signs. A sign starts at the centre of the wheel and extends outwards in a V shape to eternity. The heavy black lines are called "cusps,"Carry a straight edge on these cusps from, the outer edge of the wheel to the nostrils of the photo In the centre, and you will notice that the cusp is in line with the 20th day of the month. In a general way we call the 20th of each month the beginning of a sign, but the exact date for the beginning is marked under the picture of the sign. For Instance, the picture of the sign Aries Is a lamb; of Taurus, a bull, etc. Look under the lamb and note "21 March,"and under the bull, "19 April."
The Sun then enters Aries, March 21; the beginning of the sign and enters Taurus April 19. Now see what sign your birth point is In and mark it on your paper. That gives yon the sign that you were born under.
 
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