Question 1533Navigation General

The correct answer is A) equinoxes. The points where the Sun is at 0° declination are known as the equinoxes. The equinoxes occur twice a year, when the Sun's declination is 0° and the day and night are of equal length. This happens at the vernal (spring) equinox and the autumnal equinox. The other options are incorrect. Solstices (B) are the points where the Sun's declination is at its maximum or minimum value, not 0°. Perigee (C) and apogee (D) refer to the points where the Moon is closest and farthest from the Earth, respectively, and are not related to the Sun's declination.