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OCR: DAYS, SEASONS, AND YEARS A PLANET'S DAYS, years, and seasons of the stars; a solar day is measured are defined by its movements and according to the position of the Sun. positioning relative to other celestial A planet's year is the time it takes to objects. A planet's day is the time it orbit the Sun. And the pattern of its takes to spin once. A sidereal day is seasons depends on its tilt with measured according to the positions respect to the Sun during each year. Observer EARTH DAYS In one sidereal day the Earth has traveled from A: sidereal A to B. Once the Earth noon and distant has traveled farther along solar noon stars its orbit, to position C, a solar day has passed. B: second sidereal noon C: second solar noon EARTH EARTH PLANETARY DAYS SEASONS DAY'S