<prompt> Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu: Passage: 90377 Sedna ipuraneti duku guru riri kumativi okunze eSystem yeSolar iyo, kubva muna 2015, iri kure nemakiromita 86 kubva kuZuva, kanenge katatu kure seNeptune. Spectroscopy yakaratidza kuti Sednas surface composition yakafanana neyavamwe trans-Neptunian zvinhu, kuva zvikurukuru musanganiswa wemvura, methane, uye nitrogen ice ne tholins. Pamusoro payo pane chimwe chezvinhu zvitsvuku zvikurusa pakati pezvinhu zviri muSimba reZuva. Zvingangodaro kuti ipuraneti duku. Pakati pezvinhu zvisere zvikuru zvinopfuura Neptune, Sedna ndiyo chete isingazivikanwi kuva nemwedzi. Nokuda kwechikamu chikuru chekutenderera kwayo, inotonyanya kure neZuva kupfuura ikozvino, ne aphelion yayo inofungidzirwa pa 937 AU 31 nguva yeNeptune kure, ichiita kuti ive imwe yezvinhu zviri kure-inozivikanwa muSolare System kunze kwenguva refu-comets. Sedna ine nguva yakareba uye yakareba yakareba, inotora makore anenge 11 400 kuti apedze uye nzvimbo iri kure yekuswedera pedyo neZuva pa 76 AU. Aya maidi akatungamirira kukufungidzira kwakawanda pamusoro pamavambo aro. The Minor Planet Center pari zvino inoisa Sedna mudhisiki rakapararira, boka rezvinhu zvakatumirwa mumakwara akareba zvikuru nepesvedzero yokukweva yaNeptune. Kurongwa uku kwave kuchipikiswa nokuti Sedna haimboswederi pedyo zvakakwana neNeptune zvokuti ingave yakapararira nayo, zvichiita kuti vamwe vazivi venyeredzi vataure nezvayo zvisina kurongwa senhengo yokutanga inozivikanwa yegore reOort romukati. Vamwe vanofungidzira kuti ingave yakakwezvwa kupinda mumugwagwa wayo wazvino nenyeredzi inopfuura, zvichida imwe iri mukati mekuberekwa kweZuva boka rakazaruka, kana kuti kunyange kuti yakabatwa kubva kune imwe gadziriro yenyeredzi. Imwe fungidziro inoratidza kuti kutenderera kwayo kungava uchapupu hwenyika huru iri kunze kwedenderedzwa reNeptune. Nyanzvi yezvomuchadenga Michael E. Brown, mumwe akawana Sedna nemapuraneti maduku Eris, Haumea, naMakameke, anofunga kuti ndicho chinhu chinokosha zvikuru mune zvesayenzi chinopfuura-Neptunian chakawanikwa kusvikira zvino, nokuti kunzwisisa kwedenderedzwa rayo risingazivikanwi kungangopa mashoko anokosha pamusoro pe... Mubvunzo: Ruvara rwepasi repuraneti yeSedna nderworudzii?  <response>: tsvuku 