I-Pluto (i-astronomy)

IPluto yiplanethi encinci ejikelezayo kwindawo engaphandle yesixokelelwano sokukhanya kwelanga, kwibhanti yeKuiper. Ifunyanwe nguClyde Tombaugh ngowe-1930, yayigqalwa njengesijikelezi -langa sethoba kwisijikelezi-langa selanga kangangeminyaka engama-76.

Ubume bayo njengeplanethi iye yathandatyuzwa ukusukela ngo-1992 kulandela ukufunyanwa kwezinto ezininzi ezinobungakanani obufanayo kwi-Kuiper Belt; ukufunyanwa kwe -Eris kwi-2005, iplanethi encinci ye-disk dwarf ene-27% enkulu kune-Pluto, ekugqibeleni yakhokelela i- International Astronomical Union ukuba iphinde iqwalasele - emva kwengxoxo eshushu - inkcazo yeplanethi kwaye ngaloo ndlela iphinda ihlaziywe iPluto njengeplanethi encinci ngo-Agasti 24., 2006. ^[1] ^[2]

Phakathi kwezidalwa zasezulwini zenkqubo yelanga, i-Pluto yeshumi elinesithandathu ngobukhulu kunye neshumi elinesixhenxe ngobukhulu, kwaye yeyona inkulu kwiiplanethi ezinqabileyo kunye nezinto ze-trans-Neptunian ububanzi (kuzo zombini iindidi zigqithwa ngobunzima ngu-Eris). Kananjalo inobunzima kunye nobukhulu obuncinci kunezo zesathelayithi ezinkulu zendalo zelanga: i- Medici satellites yeJupiter, iTitan, iTriton kunye neNyanga . Xa kuthelekiswa nolokugqibela ngokukodwa, ubunzima bayo bukwisinye sesithandathu yaye umthamo wayo usisinye kwisithathu. Njengezinye izinto zeKuiper Belt, iPluto yenziwe ikakhulu ngumkhenkce kunye nelitye. ^[3]

I-orbit yayo i -eccentric kwaye ithambekele ngokubhekiselele kwindiza ye-ecliptic, ngelixa umgama wayo ukusuka eLangeni uhluka ukusuka . Ngamaxesha athile i-Pluto, ngexesha le -perihelion yayo, isondela eLangeni kuneNeptune, nangona kunjalo, ekubeni iku-2:3 orbital resonance nayo, ayisondeli ngaphezu kwe UA . ^[4]

I-Pluto ineenyanga ezintlanu ezaziwayo: iCharon (eyona inkulu, inobubanzi obungaphezulu nje kwesiqingatha sayo), iStyx, Ubusuku, iCerberus, kunye neHydra . I-Pluto kunye ne-Charon zithathwa njengenkqubo yokubini okanye iplanethi ephindwe kabini, kuba indawo yenkqubo yomxhuzulane ingaphandle kokubini. ^[5]

Ngomhla we-14 kaJulayi, i-2015, i- New Horizons probe yaba yi-spacecraft yokuqala ukubhabha nge -Pluto, isenza imilinganiselo eneenkcukacha kunye nokuqwalasela iplanethi encinci kunye neenyanga zayo. NgoSeptemba 2016, izazi ngeenkwenkwezi zabhengeza ukuba i-cap ebomvu-mdaka egquma i-Charon's North pole yenziwe ngama- tholins, i- organic macromolecules enokuba zizithako zobomi, kwaye leyo, ekhutshwe kwi -atmosphere ye-Pluto, iwela kwi-Charon kwi iThemplethi:M kude. ^[6]

↑ "Gli astronomi declassano Plutone, solo otto i pianeti del sistema solare" la Repubblica 24 agosto 2006 Check date values in: |date= (help)
↑ "https://cordis.europa.eu/article/id/26225-pluto-not-planet-say-astronomers/it" 25 agosto 2006 Check date values in: |date= (help)
↑ Subsurface oceans and deep interiors of medium-sized outer planet satellites and large trans-neptunian objects (in English) 185 (1) novembre 2006 pp. 258–273 doi:10.1016/j.icarus.2006.06.005 Check date values in: |date= (help)
↑ "Pluto's Orbit" (in English)
↑ "Pluto Moons" (in English)
↑ "New Horizons probes the mystery of Charon's red pole" (in English) 11 settembre 2015 Check date values in: |date= (help)

[declassato-1] "Gli astronomi declassano Plutone, solo otto i pianeti del sistema solare" la Repubblica 24 agosto 2006 Check date values in: |date= (help)

[2] "https://cordis.europa.eu/article/id/26225-pluto-not-planet-say-astronomers/it" 25 agosto 2006 Check date values in: |date= (help)

[Hussmann2006-3] Subsurface oceans and deep interiors of medium-sized outer planet satellites and large trans-neptunian objects (in English) 185 (1) novembre 2006 pp. 258–273 doi:10.1016/j.icarus.2006.06.005 Check date values in: |date= (help)

[nineplanet-4] "Pluto's Orbit" (in English)

[moons-5] "Pluto Moons" (in English)

[6] "New Horizons probes the mystery of Charon's red pole" (in English) 11 settembre 2015 Check date values in: |date= (help)

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