Linked from

The 9 pages that link to September equinox, each with the reason it gives.

• Tropical yearRelated: It is another seasonal marker used to define an equinox-to-equinox year.

• EquinoxBroader 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.

• HalloweenNarrower topic: Halloween belongs to the broader seasonal transition into late autumn in the Northern Hemisphere.

• Harvest festivalRelated: Many northern-hemisphere harvest observances cluster around this seasonal turning point.

• June solsticeCompared with: It is the other annual transition between seasons, rather than a declination extreme.

• March equinoxCompared with: It is the opposite-direction equinox, bringing autumn north and spring south.

• December solsticeCompared with: It marks a seasonal transition without the solstice’s extreme solar declination.

• Spring (season)Broader topic: It marks the astronomical start of spring in the Southern Hemisphere.