Ngefu i-Oort futhi Kuiper ibhande - umngcele isimiso sonozungezilanga umzimba

I-Oort Google - ibhande yezinto emhlabeni nesimiso sikanozungezilanga egcwele asteroyidi kanye lezinkanyezi ezinomsila. Kuze kube manje, akukho kwesibonakude ongakabi ukwazile ukuthola izinto ezincane ezifana buqamama, kodwa eziningi ubufakazi bezimo ubonisa ukuthi kule imingcele kakhulu yesimiso sethu sonozungezilanga kukhona imfundo efanayo. Nokho, ungayididanisi Kuiper ibhande Oort efwini. Esokuqala futhi efana ibhande elisemkhathini , futhi kuhlanganisa eminingi izinhlangano ezincane. Lalivulwe esanda kutholakala, ngonyaka ezimbili senkulungwane, lapho kwatholakala ukuthi ngale emzileni Pluto sika uzungeza ilanga ilingise mayelana nezinto zasemkhathini, ezinye zazo ziyizilimi sikhulu ngisho nangaphezu iplanethi lesishiyagalolunye, kodwa akuwona wonke waba sobala futhi kusulwe orbit, njalo ukuguquguquka e yakhe trajectory ngaphansi isenzo nomunye. Dilemma: kulolu hlangothi, abanakubizwa neze ngokuthi iplanethi, kodwa ngakolunye uhlangothi, ngokuvumelana ubungako bawo, yiwo kunangendlela Pluto. Nakuba ososayensi yesimanje okokuqala emlandweni wadala uhlu ecacile ngemibandela okufanele zifinyelelwe umzimba wasezulwini ukugqoka isimo iplanethi. Ngenxa yalokho, i-Pluto ilahlekelwe ukuthi isimo. Eminyakeni yamuva, ososayensi baye bathola inqwaba tintfo letisesitfombeni kube kulandzelwa Kuiper ibhande. Umhlangano omkhulu kunayo yonke kubo - Eris futhi Sedna.

Futhi iyini Oort ifu?

Uma Kuiper ibhande izinto zitholakala kalula ukuba ngezibonakude zanamuhla, umzimba fu ibanga kusuka Sun ngesikhathi kumiswa kuqonde mpo. Cabanga buqamama ngqo izibonakude zabo kodwa ngokwanele nzima. Ngakho-Astrophysics wathola inqwaba amaplanethi, ngisho nezinye inkanyezi izinhlelo, kodwa, okokuqala, kuba pheze zonke amaplanethi amakhulukazi efana Jupiter, futhi okwesibili, abazi zenzeka bebodwa, kodwa ngenxa umphumela okudonsa star yayo. Nokho, i-Oort ifu nezwi uthumela kithi obunengi khona. Sikhuluma lezinkanyezi ezinomsila obuhambisana PERIODICITY njalo esimisweni sonozungezilanga, njengoba izithunywa kulo mkhakha. Cishe isibonelo sasendulo esaziwa kakhulu kuyinto Halley. I-Oort ifu okuthiwa yokudumisa isazi sezindikimba ezisemkhathini Dutch, ngubani phakathi kwekhulu XX, wabikezela ukutholakala kwayo, esekelwe kugcinwa eside isikhathi lezinkanyezi ezinomsila. Le ndawo, kanye ibhande Kuiper siqukethe TNOs, okuyinto yena, yakhiwa ngokuyinhloko leqhwa i-methane, ne-carbon monoxide, i-hydrogen cyanide, ethane kanye nezinye izinto. Kungenzeka kakhulu ukuthi bangakwazi rotated futhi izinto itshe.

Umsuka wegama sphere

akhona nanamuhla bakholelwa ukuthi Kuiper Belt, ngefu i-Oort - kuba Okusele izinto esakha isimiso sonozungezilanga, kodwa ezingafakwanga lichaza ekwakheni iyiphi iplanethi eyodwa. Eminyakeni engaba ngu-bhiliyoni emihlanu edlule, iningi izinto olwaqubuka isizukulwane sokuqala izinkanyezi (esenzelwa ngokushesha nje ngemva kwe-Big Bang) ngenxa ye-gravity kanye izigidi zeminyaka compaction lalenziwa inkanyezi entsha - ilanga. Ingxenye encane protoplanetary disk ujikelezisa bahlangana amabhlogo omkhulu futhi zakha iplanethi ezungeza yethu. Ezinye izindaba zika-uthuli izinto ezincane esigaxeni zaziphonswa onqenqemeni System Solar, obumba Kuiper ibhande, nembulunga kakhulu ezikude kakhulu ngefu i-Oort.