KnowraSeptember equinoxLinked fromLinked fromThe 9 pages that link to September equinox, each with the reason it gives.All 9Broader topic 3Related 2Narrower topic 1Compared with 3EquinoxBroader topic: It is the other yearly crossing of the Sun over the celestial equator.Solar declinationBroader topic: Solar declination is zero as the Sun crosses southward.Spring (season)Broader topic: It marks the astronomical start of spring in the Southern Hemisphere.