The change in the declination of the Sun between December 21 and June 21 is approximately
A) 180°.
B) 47°.
C) 23.5°.
D) 90°.

Question

Quizplus · Accepted Answer

The change in the declination of the Sun between December 21 (winter solstice) and June 21 (summer solstice) is approximately 47°. This is because the Earth's axis is tilted about 23.5° from the plane of its orbit around the Sun, and the total change as the Sun moves from one extreme to the other is twice this angle.

The Change in the Declination of the Sun Between December