Winter Solstice: The Sun Stands Still on Saturday

The Earth’s axis currently points in a northerly direction close to the second-magnitude star Polaris, also known as the Pole Star. Because the Earth’s axis points to Polaris no matter where Earth happens to be in its orbit, the sun appears to move over the year from 23.5 degrees north of the celestial equator on June 21 to 23.5 degrees south of the celestial equator on Dec. 21.