Ekuinoks: Pabidaan ralatan

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Kata ekuinoks diambil matan basa [[Latin]] ''{{lang|la|aequinoctium}}'', nang baasal matan kata ''{{lang|la|aequus}}'' nang artinya sama wan ''{{lang|la|nox}}'' ([[kasus genitif|genitif]] ''{{lang|la|noctis}}'') nang baisi arti malam. Pas harinya ekuinoks cungul, siang wan malam waktunya sama di sabarataan wilayah di Bumi. Tapi kada sabarataan jua sama, hal ngini maraga [[diameter buncu|ukuran buncu]] matahari, [[refraksi atmosfir]], wan paubahan hancap hari nang cungul di kabanyakan di garis lintang parak ekuinoks. Jauh sabalum parsamaan nang ngini ditamuakan, budaya ekuator primitif sudah mancatat hari apa haja Matahari cungul di [[timur]] wan tinggalam di [[barat]], wan kajadian ngini dasar parak banar lawan kajadiakan nang ditantuakan sacara astronomis. Akibatnya, manurut [[jam matahari]] nang diulah wan diatur bujur-bujur, siang hari waktunya 12 jam.
 
Di [[balahan Bumi bagian utara]], [[ekuinoks Maret]] dipinandui lawan ngaran titik balik musim semi, amun [[ekuinoks September]]nya dipinandui lawan ngaran titik balik musim gugur. Di [[balahan Bumi bagian salatan]] malahan kabalikannya, hal ngini kada lain dipangaruhi [[tahun kabisat]] wan faktor lainnya.
In the [[Northern Hemisphere]], the [[March equinox]] is called the vernal or spring equinox while the [[September equinox]] is called the autumnal or fall equinox. In the [[Southern Hemisphere]], the reverse is true. The dates slightly vary due to [[leap year]]s and other factors.
 
Hemisphere-neutral names are '''northward equinox''' for the [[March equinox]], indicating that at that moment the solar declination is crossing the celestial equator in a northward direction, and '''southward equinox''' for the [[September equinox]], indicating that at that moment the solar declination is crossing the celestial equator in a southward direction.
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