Abantu, abathakaselwe yi-cosmos kusukela ekuqaleni, mhlawumbe baye bazibuza ukuthi ilanga liyiplanethi, inkanyezi, noma isathelayithi . Ngokufanayo, ilanga liye lahlukaniswa ngezindlela eziningi, futhi kuye kwavela impikiswano ngokuthi liyisathelayithi noma iplanethi. Kodwa-ke, lokhu akunakuba kude neqiniso. Ilanga liyinkanyezi , njengoba likhanya ngokukhanya kwalo.
Ilanga liyiplanethi, inkanyezi noma isathelayithi
Iyinkanyezi ebaluleke kakhulu esintwini, futhi empeleni kuyo yonke impilo emhlabeni wethu, njengoba iyona kuphela eSimisweni Selanga ekwazi ukukhiqiza amandla nokukhanya kwayo, kokubili okubalulekile ekusindeni kokuphila eMhlabeni. Ukuze uqonde kangcono ukubaluleka kweLanga, ungafunda kabanzi ngohlobo lwenkanyezi iLanga eliyiyo.
ILanga, ngokwalo, likhipha amandla amaningi nokukhanya futhi liyinto enkulu kakhulu ohlelweni lwelanga. Linquma imini, ubusuku, kanye nezinkathi, futhi liphinde libe nesibopho se-solstices. Ngaphezu kwalokho, ngenxa yobukhulu balo obukhulu, lingagcina amaplanethi angaphezu kwesishiyagalombili, imihlaba emifushane, izinyanga , kanye nezinye izidalwa zasezulwini zijikeleza.
Ngokufanayo, ngokunikeza ukukhanya namandla, iLanga likhuthaza izitshalo ukuthi zikhiqize umoya-mpilo, obalulekile kubantu nasezilwaneni ukuze ziphile, nge-photosynthesis, okuguqula amandla elanga abe amandla amakhemikhali. Ukuze uhlole le nqubo kabanzi, vakashela isihloko sethu mayelana nokuthi iLanga lenziwe ngani.
ukwakheka kwelanga
Njengoba sesiphendulile kakade ukuthi ilanga liyiplanethi, inkanyezi, noma isathelayithi, manje sizochaza ukuthi ilanga ladalwa kanjani, okuthi, ngokusho kobufakazi bochwepheshe, lavela eminyakeni engaba yizigidigidi ezingu-4600 eyedlule kusukela ekuweni kwezinto ezidonsela phansi endaweni yefu elikhulu lama-molecule.
Iningi lale ngxenye lahlangana ndawonye ekugxilweni, kuyilapho okunye kwasakazeka kwaba yindandatho ejikelezayo eyayishintsha ngaphakathi kwesimiso selanga. Isisindo esiphakathi saba sikhulu futhi sashisa, ekugcineni sabangela ukuhlangana kwenuzi enkabeni yaso. Le nqubo yokuhlangana yisona sizathu sokuba cishe zonke izinkanyezi zakheke. Funda kabanzi ngale nqubo esihlokweni sethu mayelana nezinhlobo zezinkanyezi.
ILanga cishe lineminyaka ephakathi nendawo futhi alikashintshi kakhulu iminyaka engaphezu kwezigidi eziyizinkulungwane ezine, futhi lizohlala lizinzile ngokwanele eminye iminyaka eyizigidi eziyizinkulungwane ezinhlanu. Kodwa-ke, ngemva kokumiswa kokuhlanganiswa kwe-hydrogen enkabeni yalo , iLanga lizobhekana nezinguquko ezinkulu futhi libe inkanyezi ebomvu enkulu. Kubonakala sengathi iLanga lizoba likhulu ngokwanele ukumboza imijikelezo yamanje yeMercury, iVenus, kanye noMhlaba.
ILanga liyinkanyezi etholakala esiteji esibizwa ngokuthi i-main continuum, enohlobo lwesithunzi i-G2 kanye nohlobo lwe-flare V, ngakho-ke, libizwa nangokuthi i-yellow dwarf, ladalwa phakathi kweminyaka eyizigidi ezingu-4567,9 kanye nezigidi ezingu-4570,1 edlule futhi lizohlala ochungechungeni lokuqala iminyaka engaba yizigidi eziyizinkulungwane ezinhlanu.
Naphezu kokuba inkanyezi ephakathi nendawo, yiyona kuphela ebonakala sengathi ingalinganiswa ngeso lenyama, inendlela eqondile engu-32′ 35″ e-perihelion kanye no-31′ 31″ e-aphelion, okunikeza isilinganiso esingu-32′ 03″. Ubukhulu obuhlukahlukene kanye nemizila yeLanga neNyanga kunjengokungathi zibonakala zinevolumu efanayo ebonakalayo esibhakabhakeni. Lokhu kuvumela ububanzi obukhulu bokufiphala kwelanga okuhlukahlukene (okuphelele, oku-annular, noma okungaphelele). Uma ungathanda ukufunda kabanzi ngalezi zimo, sicela ubheke isihloko sethu mayelana nokuwa kwezinkanyezi.
Ngakolunye uhlangothi, umphumela omkhulu weLanga Emhlabeni uye waqashelwa kusukela ezikhathini ze-paleolithic futhi amasiko athile aye ahlonishwa njengeqhawe. Ukuhamba koMhlaba eduze neLanga kuyindawo yekhalenda yelanga, okuyi-almanaka esetshenziswa kakhulu namuhla.
ukwakheka kwelanga
ILanga lakhiwe ngezinhlobo ezahlukene kanye namanani amagesi kuzo zonke izendlalelo zalo, ikakhulukazi i-25% ye-helium, i-74% ye-hydrogen, kanti okusele kusatshalaliswa phakathi kwenhlanganisela engalingani yesulfure, i-oxygen, i-magnesium, i-neon, i-nitrogen, i-silicon, nezinye izakhi. Ukuze ufunde kabanzi ngokwakheka kwalo, ungafunda ngalokho obekuzokwenzeka uma iLanga lingafa.
Lezi zimpumulo zishintshaniswa ezingxenyeni zeLanga eziqala kusukela ku-aureole, indawo yokuguquka, bese kuba yi-chromosphere, i-photosphere, indawo yokuthumela ngaphandle exhumanisayo, indawo ye-tachocline , isandiso sokuthutha imisebe kanye ekugcineni ne-axis, lapho kutholakala khona inani elikhulu lamagesi, ikakhulukazi i-hydrogen yokwenza ukusabela kwe-nuclear fusion ukudala i-helium.
Iziphetho mayelana nokuthi ilanga liyiplanethi, inkanyezi noma isathelayithi
Ngaphambi kokuchaza ukuthi ilanga liyiplanethi, inkanyezi, noma isathelayithi, kubalulekile ukuchaza lesi samuva. Isathelayithi umzimba wasezulwini ohlangene, ohlukaniswe njengomhlaba ongcolile ohamba endaweni ezungezile eduze kweplanethi. Lawa masathelayithi kungenzeka ukuthi akheke ngenxa yokushayisana komunye umzimba nenkanyezi okukhulunywa ngayo, ehlukana negobolondo layo langaphandle, njengoba kunjalo ngeNyanga. Ngaphandle kwalokho, angaba amatshe , ama-meteorite, noma ama-comet angena endaweni ezungezile yonke bese ehluleka ukubaleka.
Yingakho amasathelayithi emancane kuneplanethi eyinhloko; nokho, amanye makhulu kangangokuthi angafinyelela ngisho nendlela yokujikeleza okubili , njengoba angacatshangwa njengamaplanethi amabili.
Kulo mqondo, njengoba sinokumelela okucacile kwalokho iLanga eliyikho nokuthi iyini i-satellite, singabona kalula ukuthi iLanga liyi- satellite , futhi impendulo ingu-cha oqinisekile.
Kulula ukuqaphela ngezici ezinikeziwe ukuthi iLanga alifani nanoma yiliphi lalawo akhona kwisathelayithi, njengoba lingeyona inkanyezi egobile, alincane kunezinye amaplanethi futhi vele alizungezi kunoma iyiphi iplanethi , noma kunjalo siseduze nalo.
Kulula ukuqagela, ngaphandle kokwazi kahle ukuthi iLanga libekwe kanjani, ukuthi njengoba lihlukile eNyangeni ngobukhulu, liyisathelayithi, futhi abaningi bayawusekela lo mbono ngoba iLanga lijikeleza eduze kweMilky Way noma iSolar Galaxy; noma kunjalo, ngisho nalokhu, akusona isathelayithi, ngoba ukuze ihlolwe kanjalo, kumelwe ijikeleze umzimba othile wasezulwini.
Ngakho-ke, sesiyazi kakade impendulo yokuthi ngabe iLanga liyisathelayithi, kodwa manje kuza omunye umbuzo: ikakhulukazi, liyini iLanga futhi silihlukanisa kanjani?
ILanga liyinkanyezi yochungechunge oluyinhloko lwe-G-class, eyaziwa nangokuthi i-yellow dwarf noma i-yellow G-class dwarf. Lokhu kusho ukuthi, uma kuqhathaniswa nezinye izinkanyezi , iLanga liselincane kakhulu, yize lizokhula libe likhulu ngokuhamba kweminyaka, okuhambisana nokushintsha kwalo libe nombala obomvu kakhulu. ILanga lingakhiqiza ukukhanya namandla alo, isici amasathelayithi angenakuba naso.
Ilanga lethu, iLanga, alihlukile ezinkanyezini esizibona esibhakabhakeni njalo ebusuku, ngokuvamile phakathi nenyanga entsha, ekhanya futhi ikhazimula ubusuku bonke. Okuhlukile kukho yindlela ezihamba ngayo ngaphakathi kweSistimu Yelanga kanye nezidalwa zasezulwini, ikakhulukazi uMhlaba.
Ekugcineni, njengoba sesiyazi ukuthi ilanga liyiplanethi, inkanyezi, noma isathelayithi, singabona ukuthi inkanyezi yethu ibonakala inkulu esibhakabhakeni sethu, kanti ezinye zibonakala zincane uma ziqhathaniswa. Mhlawumbe, kusukela eplanethini ezungeza enye yalezo zinkanyezi, ilanga lingavela njengoba nje sibona ezinye, ngobukhulu obufana kakhulu nephuzu elikhanyayo.
