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Seasons of Change
Autumnal Equinox
Autumnal Equinox definition: A day in year when the Sun is directly over the equator, heading southward.
Related Terms
Albedo
Angle Of Insolation
Differential Heating
Diurnal Cycle
Electromagnetic Radiation
Electromagnetic Spectrum
Evaporation
Insolation
Summer Solstice
Vernal Equinox
Winter Solstice
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