Ukufika kwehlobo nobusika njalo kuqala nge-solstice. I-solstice yasebusika inezici eziyingqayizivele ezenza lesi sigaba sibanda kakhulu onyakeni enyakatho nenkabazwe. Abantu abaningi abazi ukuthi yini solstice ebusika.
Ngenxa yalesi sizathu, sizonikezela lesi sihloko ukukutshela ukuthi i-solstice yasebusika iyini, yiziphi izici zayo nokubaluleka kwayo.
Iyini i-solstice yasebusika
Sibhekisela kuma-solstices njengamaphuzu amabili enkambo yelanga yonyaka, lapho emini iqondana nezifunda ezimbili ezishisayo zoMhlaba: ICancer neCapricorn, ngaleyo ndlela ifinyelele ukwehla kwayo okukhulu ngokuphathelene nenkabazwe yasemhlabeni. Ngamanye amazwi, i-solstice kwenzeka lapho ilanga lifika ukuphakama kwayo okuphezulu kakhulu noma okuphansi kakhulu esibhakabhakeni, kungaba +23° 27' (enyakatho) noma -23° 27' (eningizimu) yenkabazwe.
I-solstice yenzeka kabili ngonyaka: i-solstice yasehlobo kanye ne-solstice yasebusika, ngaleyo ndlela iphawula ukuqala kwalezi zikhathi zonyaka, ezishisa kakhulu noma ezibanda kakhulu kuye ngokuthi i-hemisphere. Ngakho, ngasekupheleni kukaJuni, i-solstice yasehlobo ivela enyakatho nenkabazwe, kanti i-solstice yasebusika ivela eningizimu yenkabazwe, futhi ngokuphambene nalokho, ngasekupheleni kukaDisemba. Lesi simo sihlobene nokunyakaziswa kwamaplanethi.
Igama elithi solstice livela kwelesiLatini elithi sol Sistere ("useyilanga"), ngoba ngalezo zinsuku isikhathi eside (sehlobo) nesifushane ( sasebusika) sonyaka siyenzeka. Ngenxa yalesi sizathu, amasiko esintu asendulo ahlukene ayenaka ngokukhethekile lezi zinsuku ezimbili, ezibona njengephuzu elikhulu kakhulu noma ukugcwala kokushisa noma amakhaza, ngaleyo ndlela ezihlobanisa nombuso welanga kanye nokukhazimula okukhulu, ubungqabavu kanye nokukhanya okukhulu ilanga. Enkathini yenjikalanga yasebusika kuba nokukhanya okuncane, ukuzala kuyancipha futhi kubanda, ngakho kuba khona okwengeziwe kwezwe elingokomoya, njengoba ngokuvamile kucatshangelwa izwe lasebusuku. Eqinisweni, isiko elidume kakhulu le-solstice yasebusika nguKhisimusi.
i-solstice ne-equinox
I-solstices amaphuzu lapho ilanga liqhelelene kakhulu nenkabazwe, likhiqiza ubukhulu bawo behlobo nobusika obuhlukahlukene, kuyilapho i-equinox iphambene: izinsuku lapho indiza yelanga iqondana ngokuseduze kakhulu nenkabazwe. izinsuku nobusuku obucishe bulingane ngobude. Kukhona futhi ama-equinoxes amabili unyaka wonke, ngo-March (entwasahlobo) no-September (ekwindla), enyakatho nenkabazwe (ziphambene eningizimu).
Amasiko amaningi esintu esintu abona i-equinox njengosuku loshintsho ukusuka endizeni eyodwa kuya kwenye, isikhathi soshintsho olwamukelekayo phakathi kokuphila (intwasahlobo, uhlaza) noma ukufa (ekwindla, amaqabunga awayo).
Ingabe i-solstice yasebusika iwusuku lokuqala lwesizini?
Isizathu se-solstics nezinkathi zonyaka yilokho umhlaba utsheke ngokwesilinganiso sama- degree angu-23,5 ngokuqondene nelanga. Ngakho-ke, njengoba sizungeza inkanyezi yethu, ama-hemispheres asenyakatho naseningizimu athola ukukhanya kwelanga okuhlukahlukene unyaka wonke.
Ingxenye yenkabazwe ngayinye ekude kakhulu nelanga iphola phakathi nonyaka. I-solstice yasebusika (ngo-December enyakatho, ngoJuni eningizimu) kwenzeka lapho lokhu kutsheka sekudlulele kakhulu. Lesi simo sezinkanyezi senzeka osukwini lokuqala lobusika ekhalendeni, kodwa izazi zezulu ziphambi kwethu kule sizini. Njengoba i-solstice yasebusika isondela, izazi zezulu sezibuke izimo zasebusika cishe inyanga, ngokusho kukaGreg Hammer we-NOAA's National Center for Environmental Information.
“Ubusika besimo sezulu eNyakatho Nenkabazwe buhlala buba khona ngo-December, January no-February, njengoba lezi ngokuvamile kuba izinyanga ezibandayo kakhulu onyakeni. Isekelwe emjikelezweni wokushisa waminyaka yonke, hhayi ngokwesayensi yezinkanyezi,” echaza.
Uma kubhekwa umthelela omkhulu wokukhanya kwelanga esimeni sezulu soMhlaba, kungani kungesona isikhathi sonyaka esibanda kakhulu? Ngokuyisisekelo, ehlobo, amanzi nomhlaba kudinga isikhathi sokuphola ngemva kokumunca konke ukushisa. Ngakho-ke, izinga lokushisa elincane losuku alwenzeki kuze kube cishe inyanga kamuva.
Ubusika besimo sezulu buyinkomba yekhalenda elidumile kanye nendlela abantu abaningi ababona ngayo izinkathi zonyaka. Sikholelwa ukuthi ubusika yisikhathi esibanda kakhulu, ihlobo yisikhathi esishisa kakhulu, kanti intwasahlobo nehlobo yizikhathi zenguquko. Iningi lethu libona ukushona kwelanga kokuqala isonto noma amabili ngaphambi kwe-solstice yasebusika. Lokho kungenxa yokuthi ilanga newashi lethu lomuntu akufani ncamashi.
Sihlukanise izinsuku zethu zibe yizinkathi zamahora angu-24, kodwa umhlaba awuzungezi eksisini yawo ngokunemba okunjalo. Nakuba kuhlale kunamahora angu-24 aqondile ukusuka kwenye emini kuya kwelandelayo, isikhathi phakathi kwemini yelanga, isikhathi ilanga elifinyelela ngaso endaweni yalo ephakeme kakhulu esibhakabhakeni usuku ngalunye, siyahlukahluka. Ngokuhamba kwesikhathi, isikhathi sasemini yelanga siyahluka ngokwesizini, njengoba kunjalo nokuphuma nokushona kwelanga.
NgoDisemba, ilanga emini kwenzeka cishe imizuzwana engu-30 ngemva kokuqeda umjikelezo wamahora angu-24. Nakuba sithola ukukhanya okuncane kakhulu emini entangeni, ukushona kwelanga ngalolo suku kuba ngemva kwemizuzu embalwa kunasekuqaleni kwenyanga.
Eduze nenkabazwe, ukushona kwelanga kokuqala konyaka kwenzeka ngoNovemba. Ukuyibona iqondana neSolstice, kufanele uye eNorth Pole. Ukushintsha kwezinkathi ezithile zonyaka endleleni yelanga esibhakabhakeni eduze nezigxobo kubangela ukushona kwelanga ezindaweni eziphakeme ukuba seduze nenkathi yasebusika.
Uyayibona i-solstice yasebusika?
Ungakwazi ukuqonda imiphumela ye-solstice yasebusika ngokubheka ukuthi kwenzekani esibhakabhakeni nokuthi ukukhanya kwelanga kushintsha kanjani ngokuhamba kwesikhathi. Kubabukeli basenyakatho, i-arc yelanga esibhakabhakeni ibilokhu incipha futhi iba mfushane kusukela ngoJuni. Enyakatho ye-solstice yasebusika, ifinyelela ku-arc ephansi kakhulu, iphansi kangangokuthi ibonakala iphakama futhi ihlezi endaweni efanayo izinsuku ezimbalwa ngaphambi nangemva kwe-solstice yasebusika.
Ngenxa ye-engeli ephansi yelanga, lokhu kusho ukuthi izithunzi zethu zasemini zinde kakhulu onyakeni phakathi nenkathi yasebusika.
Ngithemba ukuthi ngalolu lwazi ungafunda kabanzi mayelana ne-solstice yasebusika kanye nezici zayo.