solar years
Earth's annual circuits
A solar year is the time it takes Earth to complete one orbit around the sun—approximately 365.25 days.
This is the basis for the calendar year, with the extra quarter-day accumulated into a leap day every four years.
The Mayan calendar tracked solar years with remarkable precision.
Also called a tropical year.
- seasonsYear's four divisions
- equinoxSun crosses celestial midline
- longest dayMaximum daylight occurrence
- sunEarth's primary star
- cyclesRecurring sequences of events
sunlight · orbit · annual · axial tilt · intercalation · ecliptic · planetary · zodiac · perihelion · phenology · Julian calendar · revolutions · astronomy · sundial · Nowruz · harvest · Copernicus · timekeeping
solar, year, sol, solarium, solarize, solarization, solstice, parasol, yearly