Seasons are caused by Earth’s tilt, not its distance from the Sun. Earth is closest to the Sun in early January, at about 0.983 AU, during Northern Hemisphere winter. The key is the Sun’s angle: I = S cos Z Z_noon = |φ − δ| A higher Sun concentrates sunlight over a smaller

Name: Seasons are caused by Earth’s tilt, not its distance from the Sun. Earth is closest to the Sun in early January, at about 0.983 AU, during Northern Hemisphere winter. The key is the Sun’s angle: I = S cos Z Z_noon = |φ − δ| A higher Sun concentrates sunlight over a smaller
Channel: Cosmos Archive
Description: Seasons are caused by Earth’s tilt, not its distance from the Sun. Earth is closest to the Sun in early January, at about 0.983 AU, during Northern Hemisphere winter. The key is the Sun’s angle: I = S cos Z Z_noon = |φ − δ| A higher Sun concentrates sunlight over a smaller

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Seasons are caused by Earth’s tilt, not its distance from the Sun. Earth is closest to the Sun in early January, at about 0.983 AU, during Northern Hemisphere winter. The key is the Sun’s angle: I = S cos Z Z_noon = |φ − δ| A higher Sun concentrates sunlight over a smaller

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