Lenziwe njani iLanga?

Liqanjwa njani ilanga?

Ilanga yeyona nkwenkwezi ikufutshane emhlabeni, i-149,6 yezigidi zeekhilomitha ukusuka emhlabeni. Zonke iiplanethi ezikwisijikelezi-langa zitsalwa ngumxhuzulane wazo omkhulu, ziwujikeleza kumgama ohlukeneyo, kanye njengee-comets kunye neeasteroids esizaziyo. Ilanga liqhele ukubizwa ngegama elithi Astro Rey. abantu abaninzi abazi kakuhle linjani ilanga.

Ngenxa yesi sizathu, siza kunikezela eli nqaku ukukuxelela indlela ilanga elihlanganiswe ngayo, iimpawu zalo kunye nokubaluleka kobomi.

Iimpawu eziphambili

ilanga njengenkwenkwezi

Le yinkwenkwezi eqhelekileyo kumnyele wethu: ayikho nkulu kakhulu okanye incinci xa ithelekiswa nezigidi zoodade bayo. Ngokwenzululwazi, iLanga lihlelwa njengodidi lwe-G2 olumthubi.

Okwangoku ikuluhlu lwayo oluphambili lobomi. Imi kummandla ongaphandle weMilky Way, e enye yeengalo zayo ezijikelezayo, iminyaka engama-26.000 yokukhanya ukusuka kumbindi weMilky Way.. Nangona kunjalo, ubukhulu belanga bumele i-99% yobunzima beplanethi yonke yelanga, obulingana namaxesha angama-743 obunzima bazo zonke iiplanethi ezikwi-solar system zidibene, kwaye malunga ne-330.000 ubukhulu bomhlaba wethu.

Ngobubanzi obuzizigidi eziyi-1,4 zeekhilomitha, yeyona nto inkulu kwaye iqaqambe kakhulu kwisibhakabhaka soMhlaba. Yiyo loo nto ubukho bazo busenza umahluko phakathi kwemini nobusuku. Kwabanye, ilanga liyibhola enkulu yeplasma, ephantse ibengqukuva. Ibandakanya ubukhulu becala i-hydrogen (74,9%) kunye ne-helium (23,8%), kunye nexabiso elincinci (2%) yezinto ezinzima ezifana ne-oxygen, i-carbon, i-neon, kunye nentsimbi.

I-Hydrogen yeyona nto iphambili yelanga. Nangona kunjalo, njengoko ivutha, ijika ibe yi-helium, ishiya ngasemva umaleko we-helium "uthuthu" njengoko inkwenkwezi ikhula ngomjikelo wayo ophambili wobomi.

Lenziwe njani iLanga?

isakhiwo ilanga

ILanga yinkwenkwezi engqukuva nezipali zayo zithe tyaba kancinci ngenxa yentshukumo ejikelezayo. Nangona iyibhombu yeathom yokudibanisa i-hydrogen enkulu kwaye eqhubekayo, umxhuzulane omkhulu onikwa ubunzima bayo uchasene nogqatso logqabhuko-dubulo lwangaphakathi, lufikelele kulungelelwano oluvumela ukuba luqhubeke.

Ilanga lakhiwe ngokwemigangatho, ngakumbi okanye ngaphantsi njengetswele. Le maleko zezi:

  • Inyukliya. Ummandla ongaphakathi weLanga, oquka isihlanu seenkwenkwezi zonke: i-radius yayo iyonke imalunga ne-139.000 km. Kulapho ugqabhuko-dubulo olukhulu lweathom yehydrogen fusion lwenzeka khona, kodwa amandla omxhuzulane ombindi welanga mkhulu kangangokuba amandla avelisiweyo ngale ndlela athabatha iminyaka emalunga nesigidi ukuya phezulu.
  • Indawo yemitha. Yenziwe ngeplasma, oko kukuthi, iigesi ezifana ne-helium kunye/okanye i-hydrogen ionized, kwaye yeyona ndawo inamandla okusasaza amandla kumaleko angaphandle, ewanciphisa kakhulu amaqondo obushushu arekhodiweyo kule ndawo.
  • indawo yokuhambisa. Lo ngummandla apho irhasi ingasayiyo, nto leyo eyenza kube nzima ukuba amandla (ngendlela yeefotoni) abaleke elangeni. Oku kuthetha ukuba amandla anokuthi abaleke kuphela nge-thermal convection, ecotha kakhulu. Ngenxa yoko, ulwelo lwelanga lufudunyezwa ngendlela engalinganiyo, lubangela ukwanda, ukuncipha kokuxinana, nokunyuka okanye ukuwa kwemisinga, kanye njengamaza angaphakathi.
  • Photosphere. Ummandla apho ilanga likhupha ukukhanya okubonakalayo, nangona umaleko ocacileyo omalunga neekhilomitha ezingama-100 ukuya kuma-200 ubunzulu, ubonakala njengeenkozo eziqaqambileyo kwindawo emnyama. Kukholelwa ukuba ngumphezulu wenkwenkwezi nalapho kuvela amachaphaza elanga.
  • Ubuchwephesha: Eli ligama elinikwe umaleko ongaphandle wephotosphere ngokwayo, ebonakala ngakumbi kwaye kunzima ukuyibona ngenxa yokuba ifihliwe kukukhanya komgangatho wangaphambili. Ilinganisa malunga neekhilomitha ezili-10.000 ububanzi kwaye inokubonwa ngexesha lokusithwa kwelanga kunye nenkangeleko ebomvu.
  • Isithsaba Eli ligama elinikwe owona maleko ubhityileyo we-atmosfera yangaphandle yeLanga, apho iqondo lobushushu liphezulu kakhulu xa lithelekiswa namaleko angaphakathi. Le yimfihlelo yesixokelelwano selanga. Nangona kunjalo, kukho ingxinano ephantsi ye-matter kunye ne-magnetic field eyomeleleyo, amandla kunye ne-matter edlula ngesantya esiphezulu kakhulu, kunye nee-X-reyi ezininzi.

temperatura

Njengoko sele sibonile, ubushushu beLanga buyohluka ngokuxhomekeke kummandla apho inkwenkwezi ihlala khona, nangona zonke iinkwenkwezi zishushu ngendlela emangalisayo ngokwemigangatho yethu. Embindini weLanga, amaqondo obushushu asondele kwi-1,36 x 106 degrees Kelvin anorekhodwa (oko kukuthi malunga ne-15 lezigidi zeedegrees ngokukaCelsius), ngelixa kumphezulu iqondo lobushushu lehla ukuya ku-5.778 K (malunga ne-5.505 °C). ) umva ukuya 2 x Corona of 105 Kelvin.

Ukubaluleka kweLanga ebomini

Ilanga lenziwe njani ngaphakathi?

Ngokuphuma kwayo rhoqo kwimitha ye-electromagnetic, kubandakanywa ukukhanya okubonwa ngamehlo ethu, iLanga lifudumeza kwaye likhanyisele iplanethi yethu, lenze ubomi njengoko sisazi ukuba bunokwenzeka. Ngoko ke, ilanga alinakutshintshwa.

Ukukhanya kwayo kwenza iphotosynthesis, ngaphandle kokuba umoya ojikeleze umhlaba ubungayi kuba neoksijini eninzi njengoko siyifunayo kwaye ubomi bezityalo abunakukwazi ukuxhasa amatyathanga okutya ahlukeneyo. Kwelinye icala, ubushushu bawo buzinzisa imozulu, buvumela amanzi alwelo ukuba abekho, kwaye inika amandla kwimijikelo yemozulu eyahlukeneyo.

Ekugqibeleni, umxhuzulane welanga ugcina izijikelezi-langa zikwi-orbit, kuquka uMhlaba. Ngaphandle kwawo bekungayi kubakho imini okanye ubusuku, akukho maxesha onyaka, yaye ngokuqinisekileyo uMhlaba ubuya kuba sisijikelezi-langa esibandayo nesifileyo njengezijikelezi-langa ezininzi ezingaphandle. Oku kubonakala kwinkcubeko yabantu: phantse kuzo zonke iintsomi ezaziwayo, Ilanga lidla ngokuba kwindawo ephambili kwintelekelelo yonqulo njengothixo ongubawo wenzala. Bonke oothixo abakhulu, ookumkani okanye oomesiya banxulunyaniswa ngandlel’ ithile nobungangamsha babo, ngoxa ukufa, okungento yanto nobubi okanye ubugcisa obufihlakeleyo bunxulunyaniswa nobusuku nemisebenzi yabo yasebusuku.

Ndiyathemba ukuba ngolu lwazi unokufunda ngakumbi malunga nendlela i-Sun ehlanganiswe ngayo kunye nokubaluleka kwayo.


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