Amaplanethi yemifino: Pluto, Eris, Makemake, Haumea

iplanethi into encane empeleni zazingekho kuze 2006. Base yabelwe isigaba esisha lezinto cosmic. Inhloso yalesi ukuguqulwa kwaba ukwethulwa umlamuleli phakathi amaplanethi esikhulu asteroyidi eziningi ukuze avimbele ukudideka amagama imizimba emisha futhi be Kutholwe ngale Neptune.

definition

Khona-ke, e-ezikude kakade 2006, emhlanganweni ejwayelekile ye IAU (International Astronomical Union). Kulo mhlangano kwaba umbuzo ecacisa isimo Pluto. Phakathi nezingxoxo kwanqunywa ukuphuca kuye ka "isikhundla" iplanethi lesishiyagalolunye. MAC isungule izincazelo lezinto ezithile isikhala:

• Planet - umzimba azungeza Sun, okukhulu ngokwanele ukuba silondoloze yakhoibrium hydrostatic (okungukuthi esiyindilinga umumo) futhi ukusula orbit yezinye izinto.
• Asteroid - umzimba lumayelana Sun, okuyinto inobungako ezincane, okuyinto ayikuvumeli ukufeza ukulingana hydrostatic.
• iplanethi into encane - umzimba azungeza Sun ukuthi isekela yakhoibrium hydrostatic, kodwa hhayi omkhulu, ukusula orbit.

Phakathi yokugcina futhi wathatha Pluto.

Isimo esisha

Pluto nayo labizwa ngokuthi izinto trans-Neptunian. Njengamanye kwamanye amaplanethi yemifino, ibhekisela imizimba Kuiper Belt. Umfutho ukubuyekeza isimo Pluto kwaholela okutholakele eziningi lezinto kule ndawo ecezile sonozungezilanga. Phakathi kwawo kwakunodade owayesuka Eris, Pluto kuyinto ephakeme isisindo ngu-27%. Ngu logic of zonke lezi zindikimba kumele labizwa ngokuthi iplanethi. Yingakho kwanqunywa ukuba buyeketa abuye ucacise ukuzimisela okunjalo izinto isikhala. Kwakukhona amaplanethi yemifino.

okweshumi

"Kwehliswe elisezingeni" Pluto hhayi kuphela. Eris emhlanganweni MAC ngo-2006, ababethi "isihloko" iplanethi yeshumi. It luphakeme Pluto ngesisindo, kodwa zingaphansi kwakhe ngosayizi. Eris latholakala 2005 izazi zezinkanyezi American ehilelekile Ukufuna izinto trans-Neptunian. Ekuqaleni lalibizwa Xenu noma Xena, kodwa kamuva waqala ukusebenzisa igama zamanje.

Eris, efana kwamanye amaplanethi yemifino sonozungezilanga, it has a yakhoibrium hydrostatic, kodwa ayikho into okwazi ukusula orbit ezinye izidumbu cosmic.

Esesithathu ohlwini

Ngakusasa ngobukhulu ngemva Pluto futhi Eris, Makemake kuyinto. Lena into zakudala Kuiper Belt. Indaba ezithakazelisayo yigama walo mzimba. Njengenjwayelo, ngemuva kokutholakala yena yanikezelwa ngo-2005 fy ₉ inombolo. Kwaphela isikhathi eside, iqembu lezazi zezinkanyezi American eyathola Makemake, ngokuthi bodwa, "Easter bunny" (kwatholakala izinsuku ezimbalwa emva iholidi).

Ngo-2006, lapho kukhona ikholomu entsha "iplanethi yemifino we Solar System" in the ngezigaba, kwanqunywa ukuba ushayele 2005 fy ₉ ngenye indlela. Ngu isiko, the classic Kuiper Belt izinto zibizwa onkulunkulu bamanga elihlobene ne-indalo. Maka-Maka - umdali abantu izinganekwane eRapa-Nui, kwezakhamuzi zokuqala e-Easter Island.

Haumea

amaplanethi yemifino sonozungezilanga zihlanganisa eyodwa ngaphezulu izinto trans-Neptunian. It Haumea. Sici Its main - ukujikeleza ngokushesha kakhulu. Haumea lokhu ipharamitha ngaphambi zonke izinto ezaziwayo nge ububanzi ezingaphezu kwekhulu amamitha ohlelweni lwethu. Phakathi amaplanethi yemifino into yesine ngobukhulu.

Ceres

Enye umzimba yangaphandle okuqondene nalesi sigaba itholakala main ibhande elisemkhathini, okuyinto amanga phakathi umzila wenyanga Jupiter ne-Mars. Lokhu Ceres. Kwaba evulekile ekuqaleni 1801. Okwesikhathi esithile lalibhekwa iplanethi agcwele. Futhi 1802, okuthiwa ashiwo asteroyidi Ceres. isimo umzimba cosmic yabukezwa ngo-2006.

iplanethi into encane ezivela komakhelwane bayo emikhulu kuhluke kakhulu ukungakwazi ukusula orbit siqu kusuka nezinye iinhlangano doti. Indlela elula ukusebenzisa lokhu kwakwenqatshelwe, kunzima ukusho njengamanje - isikhathi uzokutshela. Kuze kube manje, kuphela mpikiswano kancane ancipha mayelana Pluto sika isimo wehlele. Nokho, ukubaluleka yangaphambili iplanethi lesishiyagalolunye nemizimba afanayo isayensi sisalokhu siphakeme kungakhathaliseki ukuthi zibizwa ngokuthi.