Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Passage: Matsakaicin matsakaici na yanayin Uranus shine stratosphere, inda yawan zafin jiki yakan karu da tsawo daga 53 K (−220 ° C; −364 ° F) a cikin tropopause zuwa tsakanin 800 da 850 K (527 da 577 ° C; 980 da 1,070 ° F) a gindin thermosphere. Ana haifar da dumamawar stratosphere ta hanyar shaƙar hasken UV da IR na hasken rana ta hanyar methane da sauran hydrocarbons, waɗanda ke faruwa a wannan ɓangaren yanayi sakamakon methane photolysis. Hakanan ana gudanar da zafi daga yanayin zafi mai zafi. Hydrocarbons sun mamaye wani ɗan ƙaramin ɗaki a tsawan tsakanin 100 da 300 km wanda ya dace da matsin lamba na 10 zuwa 0.1 mbar (10.00 zuwa 0.10 hPa) da yanayin zafi tsakanin 75 da 170 K (−198 da −103 °C; −325 da −154 °F). Mafi yawan hydrocarbons sune methane, acetylene da ethane tare da haɗuwa da haɗuwa da kusan 10−7 dangane da hydrogen. Matsayin haɗuwa na carbon monoxide iri ɗaya ne a waɗannan tsaunuka. Hydrocarbons masu nauyi da carbon dioxide suna da haɗuwa da haɗuwa uku na girman ƙasa. Adadin wadatar ruwa yana kusa da 7 × 10−9. Ethane da acetylene suna daɗaɗaɗa a cikin ƙananan ɓangaren sanyi na stratosphere da tropopause (ƙasa da matakin 10 mBar) suna samar da layin hazo, wanda zai iya zama wani ɓangare na alhakin bayyanar Uranus. Haɗuwar hydrocarbons a cikin Uranian stratosphere sama da hazo ya fi ƙasa da na sauran taurari masu girma. Layer na waje na yanayin Uranian shine thermosphere da corona, wanda ke da daidaitattun zafin jiki a kusa da 800 zuwa 850 K. Ba a fahimci tushen zafi da ake buƙata don ci gaba da irin wannan babban matakin ba, kamar yadda ba hasken rana ba ko kuma aikin auroral ba zai iya samar da makamashin da ake buƙata don kula da waɗannan yanayin zafi. Rashin ƙarancin sanyaya saboda rashin hydrocarbons a cikin stratosphere sama da matakin matsin lamba na 0.1 mBar na iya ba da gudummawa. Baya ga hydrogen na kwayoyin halitta, thermosphere-corona ya ƙunshi ƙwayoyin hydrogen masu yawa. Ƙananan ƙwayoyin su da yawan zafin jiki sun bayyana dalilin da yasa corona ta faɗaɗa...  Tambaya: me ya sa sanyaya ya kasance mai rauni?
rashin hydrocarbons a cikin stratosphere