Thuto:Saense

Leru la Oort le lebanta la Kuiper ke lihlopha tsa moeli oa Letsatsi la Letsatsi

Cloud ea Oort ke lebanta le ikhethang le potolohileng letsatsi, le tletseng li-asteroids le li-comets. Ho fihlela joale, ha ho na sebonela-hōle se khonang ho lemoha lintho tse nyenyane joalo ka nako e telele, empa bopaki bo bongata bo sa tobang bo bontša hore ho na le thuto e tšoanang ho ea fihla moo re leng teng ho ea linaleli. Leha ho le joalo, lebanta la Kuiper le leru la Oort ha lia lokela ho ferekanya. Ea pele e boetse e tšoana le lebanta la asteroid mme e kenyelletsa tse ngata Lihlooho tse nyenyane. E ile ea sibolloa haufinyane tjena, lilemong tsa bo-2000 ha e sibolloa hore ka mor'a letsatsi, 'mele e potolohileng e potoloha ho potoloha Letsatsi , e meng ea eona e bile e kholo ho feta polanete ea borobong, empa e se kaofela e e-na le tsela e hlakileng le e hlakileng, Tsamaiso tlas'a tšusumetso ea mong le e mong. Ho ne ho e-na le bothata: ka lehlakoreng le leng, ba ne ba ke ke ba bitsoa lipolanete, empa ka lehlakoreng le leng, li kholo ho feta Pluto. Joale ka lekhetlo la pele historing, bo-rasaense ba mehleng ea kajeno ba entse lenane le hlakileng la litekanyetso tseo 'mele oa leholimo o lokelang ho li kopana e le hore o nke boemo ba polanete. Ka lebaka leo, Pluto o lahlile boemo bona. Lilemong tsa morao tjena, bo-rasaense ba fumane lintho tse ngata ka lebanta la Kuiper. E kholo ka ho fetisisa ho eona ke Eris le Sedna.

Le Cloud ea Oort ke eng?

Haeba lintho tsa lebanta la Kuiper li fihlile ka ho feletseng ho libonela-hōle tsa morao-rao, joale 'mele ea leru lena e arohane le letsatsi selemo kaofela . Ho e-na le hoo ho thata ho li hlahloba ka ho toba libonela-hōle sebakeng sena. Ka nako e tsoanang, litsebi tsa astrophysicists li se li fumane lipolanete tse ngata esita le lits'ebetsong tse ling tsa stellar, empa, pele, li batla li le lipolanete tse khōlō joaloka Jupiter, 'me ka lekhetlo la bobeli, ha li hlokomeloe ke tsona feela, empa li na le tsusumetso e matla ho linaleli tsa tsona. Leha ho le joalo, leru la Oort ka sebele le re romela bopaki bo bongata ba hore le teng. Re bua ka li-comet, tse nang le makhetlo a mangata a tlang tsamaisong ea letsatsi, e leng baemeli ba sebaka sena. Mohlala o tummeng ka ho fetisisa ke Halley's comet. Lefu la Oort le ne le bitsoa ka mor'a setsebi sa linaleli sa Madache, ea ileng a bolela esale pele hore o sibolloa bohareng ba lekholo la bo20 la lilemo, ho itšetlehile ka tlhaloso ea li-comet tse telele. Sebaka sena, hammoho le lebanta la Kuiper, le na le lintho tsa trans-Neptuni, tseo le tsona li nang le leqhoa, hammoho le methane, carbon monoxide, cyanide, ethane le lintho tse ling. Ho ka etsahala hore ebe majoe a lejoe a ka potoloha moo.

Tšimoloho ea sebaka

Litsebi tsa kajeno tsa astrophysicists li lumela hore lebanta la Kuiper, leru la Oort - sena ke se setseng sa lintho tse bōpileng tsamaiso ea letsatsi, empa e se karolo ea polanete leha e le efe. Lilemong tse ka bang limilione tse likete tse hlano tse fetileng, boholo ba taba ea moloko oa pele oa lihlopha (e leng, o thehiloeng kapele ka morao ho Big Bang) ka lebaka la matla a khoheli le lilemo tse limilione tsa condensation e fetotsoe hore e be khanya e ncha - Sun. Karolo e nyenyane ea disk sena e potolohang ea protoplanetary e ile ea kena likarolong tse khōlō 'me ea theha lipolanete tsa tsamaiso ea rona. Tse ling kaofela tsa lerōle le lintho tse nyenyane tsa nebula li ne li lahleloa ho ea bohareng ba tsamaiso ea letsatsi, li etsa lebanta la Kuiper le karolo e hōle ea leru la Oort.

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