In this lecture you will learn about:
|Equinoxes and solstices
the direction of the axis changes in a
slow precession with period of 26,000 years. To pass thru each of
the 12 signs of the zodiac takes about 2100 years. After 2100 years
we move out of one age and into another. Pices was around 60 BC. We are
now moving into the age of Aquarius.
What does equinox and solstice mean?
"A lunar phase or phase of the moon refers to the appearance of the illuminated portion of the Moon as seen by an observer, usually on Earth. The lunar phases vary cyclically as the Moon orbits the Earth, according to the changing relative positions of the Earth, Moon and Sun. One half of the lunar surface is always illuminated by the Sun (except during lunar eclipses), and hence is bright, but the portion of the illuminated hemisphere that is visible to an observer can vary from 100% (full moon) to 0% (new moon). The boundary between the illuminated and unilluminated hemispheres is called the terminator."
THESE ARE ALL EXAMPLES OF SPRING AND NEAP TIDES OR "SUN TIDES"
draw and/or explain the following
phases of the moon
eclipses and lack thereof
precession of the equinoxes