The autumnal equinox is the point where the Sun is at __________.
Official USCG Answer & Rule Citation
Correct Answer: Option A — 0° declination going to southerly declinations
The Nautical Almanac defines the autumnal equinox as the intersection of the ecliptic and celestial equator where the Sun's declination is 0 degrees as it transitions from northern to southern celestial latitudes.
100% Free & Open Access — No daily limits, paywalls, or gated answers on BrightMariner.