Ifu leMagellan

indawo yonke yamazimuzimu

Okukhulu Ifu leMagellan iwumthala oseduze okwakucatshangwa ukuthi uwumthala ongajwayelekile kwaze kwaba yilapho izazi zezinkanyezi ziwubhekisisa. Kungaba yi-spiral. I-Large Magellanic Cloud kanye ne-galaxy yayo encane, i-Magellan Cloud, ibonakala kuphela esibhakabhakeni se-hemisphere eseningizimu yoMhlaba. I-Milky Way ihlezi idla igesi egeleza isuka eMagellan Clouds ngokugeleza kwe-Magellan. Ekugcineni lemithala emibili emincane ingase ingqubuzane ne-Milky Way.

Kulesi sihloko sizokutshela konke okudingeka ukwazi mayelana ne-Large Magellanic Cloud, izici zayo, umsuka nokunye okuningi.

Izici eziyinhloko

umthala ongumakhelwane

Izici eziyinhloko zeMagelnic Cloud yilezi ezilandelayo:

  • Ingabonakala kusukela eningizimu nenkabazwe futhi ingumthala wesibili oseduze neMagelnic Cloud.
  • Ingenye yemithala emincane eyishumi nanye ezungeza eyethu i-Milky Way futhi Kuthathwa njengomthala ongajwayelekile.
  • Iqukethe amatshe abomvu, izinkanyezi, amafu amancane ezinkanyezi, kanye nesifunda esikhanyayo sokwakheka okubonakalayo eyaziwa ngokuthi i-Tarantula Nebula.
  • I-supernova yesimanje egqame kakhulu, i-SN1987A, iqhume ku-Magelnic Cloud.
  • Inesandiso seminyaka yokukhanya engaba ngu-30.000.
  • Kukholakala ukuthi umthala wesathelayithi omkhulu kakhulu we-Milky Way.
  • Ifindo elibomvu elivelele ngezansi laziwa ngokuthi i-Tarantula Nebula, isifunda esenza inkanyezi e-Large Magellanic Cloud.
  • Iwuhlobo oluphazamisekile lwe-rod-spiral.
  • Inobubanzi obungamamitha ayi-14.000 kanye nebanga elingu-163.000.
  • Inezinkanyezi ezingaba yizigidi eziyizinkulungwane ezingu-30.

Isici esiyinhloko seMagellanic Cloud isakhiwo saso sonke, esichazwa ngokuthi umthala omncane, okusho ukuthi unqamula isikhunta njengeminye imithala eminingi ngoba ayinazo izici eziyisiyingi noma ezizungezayo. Ukuma kwayo kwaholela ososayensi ukuba bayifake ohlwini lwemithala enezimo ezingavamile.

Kufanele kuqashelwe ukuthi akuyona yonke imithala ekhona endaweni yonke enokwakheka okujwayelekile, okufana ne-ellipse. Nakuba imithala eminingi inamaphethini azungezayo, eminye imithala, ngokuvamile ebizwa ngokuthi imithala emincane, ivame ziqukethe izimo ezithile ezizichaza ngokushesha njengemithala engajwayelekile.

Ukutholwa Kwefu leMagellan

ifu magellan

Iqiniso lokuthi i-Sagittarius elliptical galaxy yatholakala esikhathini esithile kamuva lashukumisela ososayensi ukuba baphenye ukuthi uhlala kuphi emkhathini. Imiphumela yayimangaza, ithola ukuthi lokhu kanye neMagellan Clouds kuxhumene futhi kuhlobene.

Ebangeni elingaba iminyaka engu-75.000 ukukhanya, umthala weSagittarius kanye neMagellan Cloud ziqhelelene kakhulu. Ukuhlanekezela okukhiqizwa amandla abangelwa amagagasi ngokusebenzisana kwawo ne-Milky Way kubangela ukuhlanekezela okuthinta imiphumela ethile eyenza imithala emibili ihlangane ngokusebenzisa imisinga ethile.

Le mifudlana yakhiwe i-hydrogen engathathi hlangothi, edala umphumela wokusebenzelana phakathi kwemithala emibili, ngokuvamile okuholela ezimweni ezigcina zilimaze izici zangaphandle ezihambisana namadiski awo ethala.

Kokubili iMagellic Clouds neSaturn Galaxy babe nezici eziyingqayizivele futhi eziphawulekayo ze-morphological, ngokwesisindo nokwakheka kwazo, kuveza izici ezimbili ezizihlukanisayo kulezi zingxenye ezimbili, ubukhulu nesakhiwo, kulezo eziphuma kusampula ye-Milky Way.

Umlando othile

Isikhundla esingavamile seLarge Magellanic Cloud, ncamashi ngaseSouth Pole of the Ecliptic, sisho ukuthi asinakubonwa nganoma isiphi isikhathi ukusuka ezindaweni ezikude zaseMedithera, ngakho lahlala lingaziwa ezikhathini zasendulo.

Ukukhulunywa kokuqala ngefu Le-Magellan Elikhulu kutholakala eNcwadini Yezinkanyezi eyabhalwa cishe ngo-964 yisazi sezinkanyezi sasePheresiya u-Abd Al-Rahman Al Sufi. Wayebizwa ngokuthi u-Al Bakr, iNkunzi Emhlophe eNingizimu ye-Arabia, ngoba i-Large Magellanic Cloud ibonakala kusukela eNingizimu Arabia.

U-Amerigo Vespucci wabhala lokhu okulandelayo encwadini ohambweni lwakhe lwesithathu ngo-1503-1504. Phakathi nokuzungeza kwakhe uMhlaba, uFerdinand Magellan waba ngowokuqala ukwazisa amazwe aseNtshonalanga ngokuba khona komthala, namuhla obizwa ngegama lakhe. Owokuqala ukufunda iLarge Magellanic Cloud ngokuningiliziwe kwakunguJohn Herschel., owahlala eKapa phakathi kuka-1834 no-1838, ehlaziya izinto ezixubile ezingama-278 eyayiqukethwe.

I-Large Magellanic Cloud yayibhekwa njengomthala oseduze kakhulu ne-Milky Way kwaze kwaba yilapho kutholakala i-Sagittarius Dwarf Elliptical Galaxy ngo-1994. Ngokutholwa komthala omncanyana i-Canis Major ngo-2003, isihloko somthala oseduze sawela kowakamuva.

I-Morphology kanye nezinto zeMagelnic Cloud

ifu elikhulu le-magellanic

Ngokusho kwe-NASA's Extragalactic Object Database, i-Large Magellanic Cloud ihlukaniswa njenge-SB(s)m, umthala ogobile (SB) ongenawo umumo/amaringi anomumo ongavamile futhi ongenawo amaqhuqhuva (m). Ukubukeka okungavamile komthala kungase kube umphumela wokusebenzelana ne-Milky Way kanye ne-Small Magellanic Cloud.

Isikhathi eside kwakucatshangwa ukuthi iMagellan Cloud iwumthala oyisicaba, njengomthala ozungezayo, futhi kungacatshangwa ukuthi iqhelelene nathi. Nokho, ngo-1986, uCaldwell kanye noCoulson bathola ukuthi okuguquguqukayo kwe-Cepheid enyakatho-mpumalanga yesifunda samafu esikhulu kuseduze ne-Milky Way kuneziguquguquko ze-Cepheid esifundeni esiseningizimu-ntshonalanga. Muva nje, le geometry etshekile iqinisekiswe ngokubhekwa kwezinto eziguquguqukayo ze-Cepheid nama-giants abomvu esigabeni sokuhlanganisa i-helium. Le misebenzi ibonisa ukuthi ukuthambekela kwe-LMC cishe ku-35º, uma kucatshangelwa ukuthi u-0º uhambisana nendiza ehambisana nomthala wethu.

Ifu elikhulu leMagellan inezinkanyezi ezingaba yizigidi eziyizinkulungwane eziyi-10.000 futhi ingama-light-year angaba ngu-35.000 XNUMX ububanzi. Ubukhulu bayo buphindwe izikhathi eziyizigidi eziyizinkulungwane eziyi-10 kuneLanga kanye nengxenye yeshumi ye-Milky Way. Njengemithala eminingi engajwayelekile, ifu elikhulu linothile ngegesi nothuli futhi okwamanje lisesikhathini sokusebenza sokwakheka kwezinkanyezi. Ucwaningo oluhlukahlukene luthole cishe amaqoqo angama-globular angama-60 (angaphansi nje kwengxenye yosayizi we-Milky Way), ama-nebulae amaplanethi angama-400, namaqoqo ezinkanyezi avulekile angama-700 eLarge Magellanic Cloud, kanye namakhulu ezinkulungwane zezinkanyezi ezinkulu nezinkulu kakhulu.

Ngithemba ukuthi ngalolu lwazi ungafunda kabanzi mayelana ne-Magellan Cloud nezici zayo.


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  1. Ubhekele imininingwane: Miguel Ángel Gatón
  2. Inhloso yedatha: Lawula Ugaxekile, ukuphathwa kwamazwana.
  3. Ukusemthethweni: Imvume yakho
  4. Ukuxhumana kwemininingwane: Imininingwane ngeke idluliselwe kubantu besithathu ngaphandle kwesibopho esisemthethweni.
  5. Isitoreji sedatha: Idatabase ebanjwe yi-Occentus Networks (EU)
  6. Amalungelo: Nganoma yisiphi isikhathi ungakhawulela, uthole futhi ususe imininingwane yakho.