Name: Year On Earth
Length: 09:28
Project: Space
Keywords: earth sidereal year sun moon orbit constellation zodiac ecliptic star sky dawn Hemisphere North South Orion tropical year axis analemma tilt winter summer solstice vernal autumnal equinox Polaris Thuban Draco Vega gravitational force season perihelion aphelion equator Nutation LuniSolar ellipse eccentricity perihelion apsidal Planetary Precession Obliquity anomalous year