Ubusuku obulinganayo. Yile nto & apos eyenzekayo ngolwesiThathu, Matshi 20, xa iiyure zemini kunye nobumnyama ziya kufana. Nangona kunjalo i-equinox, isiLatin 'sobusuku obulinganayo,' ikwabonisa ukuqala kwentwasahlobo ye-astronomical, ephawula indawo kwi-Earth & apos; s orbit xa i-hemisphere esemantla iqala ukufudumeza.
Unini usuku lokuqala lwentwasahlobo?
I-equinox yasentwasahlobo yenzeka ngolwesiThathu, nge-Matshi 20, 2019, nge-21: 58 ye-UTC, eguqula njenge-5: 58 pm ET kunye no-2: 58 pm PT. Ngelo xesha likhethekileyo lehlabathi, intwasahlobo yeenkwenkwezi iqala kumantla e-hemisphere, kwaye ihlala kude kube ngu-Juni 21, xa kusenzeka i-solstice yehlobo.
Central Park ngentwasahlobo nabantu, eNew York, e-USA Ityala: Matteo Colombo / Getty IzithombeYintoni intwasahlobo yequinox?
Ikwabizwa ngokuba yi-vernal equinox (intsingiselo yentsingiselo 'yasentwasahlobo'), i-equinox ngumzuzu eMhlabeni kunye ne-apos; orbit xa ilanga libonakala linqumla i-ikhweyitha yasezulwini. Kuthetha iintsuku ezinde nezishushu njengoko i-hemisphere esemantla iqala ukutyekela elangeni. Nangona kunjalo, kangangexesha elifutshane, iintsuku nobusuku ziphantse zilingane ngobude.
Nangona ibonisa ukuqala kwentwasahlobo kumantla e-hemisphere, inesiphumo esichaseneyo kwi-hemisphere esemazantsi, eqala ukutyekela kude elangeni, ebangela ukuqala kokuwa.
Central Park ngentwasahlobo nabantu, eNew York, e-USA Ityala: Matteo Colombo / Getty Izithombe