Kuumbwa chaiko kweiyo subnebula hakuzivikanwe; zvisinei, huwandu hwakanyanya hwepamusoro hweTitania nemamwe mwedzi yeUranus uchienzaniswa nemwedzi yeSaturn inoratidza kuti inogona kunge yaive yakaderera mvura. Huwandu hukuru hwenitrogen uye kabhoni ingangove yaivepo muchimiro checarbon monoxide uye N2 pachinzvimbo cheammonia nemethane. Mwedzi yakaumbwa mune yakadaro subnebula ingangove iine mvura shoma (ine CO neN2 yakavharirwa sedombo) uye yakawanda dombo, ichitsanangura yavo yakakwira claticity. Kuumbwa kwemwedzi weTitania kwakamira kwenguva yakati rebei mushure mekugadzirwa kwayo kana kuti yakagadzirwa nekukanganisa kukuru uko kwakanyanya kupa Uranus kukanganisa kwayo kukuru kwakapa Uranus kukombama kwayo kukuru.
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