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Diagram showing the Earth with an axial tilt of about 23 degrees at the December Solstice (Winter in the Northern Hemisphere) and the June Solstice (Summer in the Northern Hemisphere). Earth is depicted as a circle with a line showing its axis. The December Earth is on the left and the June Earth is on the right, with the Sun at the center. The axis line points up and to the left with an angle of about 23 degrees from the vertical in both June and December. This means that the Northern Hemisphere points away from the Sun in December and towards the Sun in December. The reverse is true for the Southern Hemisphere. Half of the circle is shaded indicating day and half of the circle is shaded indicating night. Because of the tilt, the north pole is in the night half and the south pole in the day half in December. Also, more of the Southern Hemisphere is in the day half and more of the Northern Hemisphere is in the night half of the globe. This is reversed in June. The north pole is in the day half and the south pole in the nigh half in June. More of the Northern Hemisphere is in the day half and more of the Southern Hemisphere is in the night half of the globe.