Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Kupfuura: Umbriel ndiro mwedzi wechitatu mukurusa uye wechina mukurusa waUranus. Kuwanda kwemwedzi i1,39 g/cm3, izvo zvinoratidza kuti inonyanya kugadzirwa nemvura ine chando, iine chinhu chakakora chisiri chando chinoumba anenge 40% yehuwandu hwayo. Zvokupedzisira zvaigona kugadzirwa nedombo uye zvinhu zvine kabhoni zvinosanganisira makemikari anorema anozivikanwa se tholins. Kuvapo kweaizi yemvura kunotsigirwa nokucherechedza kweinfrared spectroscopic, uko kwakaratidza aizi yemvura yekristaro pamusoro pemwedzi. Mabhendi anobata mvura yeaizi akasimba zvikuru paUmbriel's leading hemisphere kupfuura pa trailing hemisphere. Chinokonzera kusaenzana uku hachizivikanwi, asi chinogona kuva nechokuita nokurwiswa nezvikamu zviduku zvine simba zvinobva mu magnetosphere yaUranus, iyo yakasimba zvikuru mu hemisphere yekupedzisira (nemhaka yokushanduka kweplasma). Zvinhu zvine simba zvinowanzoputika mvura yechando, zvinoputsa methane yakavharirwa muaizi se clathrate hydrate uye inosvibisa zvimwe zvinhu zvinorarama, zvichisiya zvakasara zvakasviba, zvine kabhoni yakawanda. Kunze kwemvura, chimwe chinhu choga chakaonekwa pamusoro peUmbriel ne spectroscopy yeinfrared icarbon dioxide, iyo inonyanya kuiswa muchikamu chekupedzisira chenyika. Hazvinyatsozivikanwi kuti kabhoni yakasviba yakabva kupi. Inogona kugadzirwa munharaunda yacho kubva kumacarbonate kana kuti zvinhu zvinogadzirwa nemiti pasi pesimba rezvinhu zvine simba zvinobva muUranus' magnetosphere kana kuti mwaranzi yezuva yeultraviolet. Iyi fungidziro yaizotsanangura kusaenzana mukuparadzirwa kwayo, sezvo hemisphere yekupedzisira iri pasi pesimba rakasimba re magnetospheric kupfuura iyo inotungamirira hemisphere. Chimwe chinogona kukonzera izvi ndiko kubuda kwegasi reCO2 yepakutanga yakabatwa nechando chemvura chiri mukati meUmbriel. Kupukunyuka kweCO2 kubva mukati kungava mugumisiro wechiitiko chenguva yakapfuura chechimiro chenyika pamwedzi uyu. Umbriel angave akaparadzaniswa kuva musimboti wedombo wakakomberedzwa nomucheka wechando. Kana izvi zvirizvo, nharaunda yenheyo yacho (317 km) inenge 54% yeiyo nharaunda yemwedzi, uye huremu hwayo hunenge 40% yehuremu hwemwedzi<unk>the parameters are dictated...  Mubvunzo: Uranus anorova mwedzi yayo nemhandoi dzezvinhu zviduku?
zvimedu zvine simba