1. Today!
From Earth’s Perspective:
Celestial Coordinates
Precession of the equinoxes
Astrology?

2. On the celestial sphere,
stars are like cities on the sky.
Just like cities on the earth,
it takes two coordinates
To give us their location.

5. Polaris will
Not always be
The North Celestial Pole.

6. Earth’s axis points toward 12 signs in succession.
Also the sun, seen from earth, moves around in 1 year.

8. Claudius Ptolemy
wrote a book called Tetrabiblios
around 150 AD.
This codified Western Astrology.

9. However, the Precession of the Equinoxes
has changed the position of the sun in the zodiac
by about two thirds of a sign since Ptolemy.
Those born between about the 22nd of each month
Through the 10th of the next
Actually had the previous sign at birth.

10. In the 1970’s,
Michel Guaquelin, a psychologist
With an open mind,
studied 60,000 birth charts
With an open mind
and scientific statistics.

11. He found no evidence for:
Sun signs
Houses
Aspects
But he did find evidence that:
Mars and other planets
being at power points in
the sky at birth relate to
success in sports
and other occupations.

12. It does also seem that planets in these positions
impart the planetary influences indicated
by astrologers.