celestial motions stars appear to move counterclockwise on the surface of a huge sphere – the...
TRANSCRIPT
CELESTIAL MOTIONS
Stars appear to move counterclockwiseon the surface of a huge sphere – the Starry Vault, in their daily motions about Earth
Earth Starry Vault
Polaris remains stationary.
In Charlottesville we see Polaris 380
above the Northern horizon.
Daily Motion of Stars seen from Charlottesville
IMPORTANT TERMS
Vernal Equinox
Summer Solstice
Autumnal Equinox
Winter Solstice
Ecliptic
Sun
Celestial Equator
LATTITUDE 380 NORTH
Sunlight
EarthEquator
Charlottesville380
MOON
Siderial Period: Time for the Moon to orbit Earth and realign with a star. Equal to 27.32 days. Synodic Period: Time for the Moon toorbit Earth and realign with the Sun.Equal to 29.53 days.
Zodiac: A band extending 80 on either side of the ecliptic. The Sun, Moon, and planets move through the zodiac.
Ecliptic
Moon Sun
MOON’S PATH THROUGH THE ZODIAC
PHASES OF THE MOON
Crescent Half Gibbous Full
ECLIPSESLunar eclipse
Solar Eclipse
Moon Earth
Earth
Moon
LUNAR ECLIPSE
SOLAR ECLIPSE
MOTIONS OF THE PLANETS
The five planets visible by naked eye are:MercuryVenusMarsJupiterSaturn
VENUS RETROGRADE MOTION
Venus2.mov
VENUS AND MERCURY RETROGRADE MOTION
QuickTime Movie