0. The Cycles of the Moon. The phases of the moon The tides Lunar eclipses Solar eclipses. 0. The Phases of the Moon . From Earth, we see different portions of the Moon’s surface lit by the sun , causing the phases of the Moon . 0. The Phases of the Moon. 27.32 days.
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The Cycles of the Moon
The moon orbits counterclockwise around Earth (viewed from the North). => It appears to move eastward against the background of the stars. => The waxing crescent is visible
Typically, 1 or 2 lunar eclipses per year.
Chromosphere and Corona
Diamond Ring Effect
If the sun and the moon have the same angular diameter on the sky, does that mean that the sun and the moon actually have about the same size?
Apogee = position furthest away from Earth
Perihelion = position closest to the sun
Perigee = position closest to Earth
Aphelion = position furthest away from the sun
(Eccentricities greatly exaggerated!)
Almost total, annular eclipse of May 30, 1984
Approximately 1 total solar eclipse per year