•The Earth’s axis is tilted 23.5°
from being perpendicular to the ecliptic plane.
celestial equator is tilted 23.5° to the ecliptic.
•As seen from Earth, the
Sun spends 6 months north of the celestial equator and 6
months south of the celestial equator.
•Seasons are caused by the Earth’s axis
tilt,not the distance from the Earth to the