Duba wurin da ke ƙasa sannan ka amsa tambayar daga baya a cikin harshe ɗaya kamar yadda wurin yake:  Hanyar wucewa: Sama da chromosphere, a cikin yanki mai raɗaɗi (kimanin kilomita 200), yawan zafin jiki yana ƙaruwa da sauri daga kusan 20,000 K a cikin chromosphere na sama zuwa yanayin zafin jiki na coronal kusa da 1,000,000 K. An sauƙaƙe haɓakar zafin jiki ta hanyar cikakken ionization na helium a cikin yankin miƙa mulki, wanda ke rage sanyaya radiation na plasma. Yankin miƙa mulki ba ya faruwa a ƙayyadadden tsayi. Maimakon haka, yana samar da wani nau'i na nimbus a kusa da siffofin chromospheric irin su spicules da filaments, kuma yana cikin motsi, motsi. Yankin sauyawa ba shi da sauƙin gani daga saman Duniya, amma ana iya lura da shi daga sararin samaniya ta hanyar kayan aikin da ke da hankali ga matsanancin ɓangaren ultraviolet na bakan. Corona shine Layer na gaba na Rana. Corona na ƙasa, kusa da farfajiyar Rana, yana da ƙarancin ƙwayar cuta a kusa da 1015 m-3 zuwa 1016 m-3. Matsakaicin zafin jiki na corona da iskar rana kusan 1,000,000<unk>2,000,000 K; duk da haka, a cikin yankuna mafi zafi shine 8,000,000<unk>20,000,000 K. Kodayake babu cikakkiyar ka'idar da ta wanzu don lissafin zafin jiki na corona, aƙalla an san wasu daga cikin zafinta daga sake haɗawa da maganadisu.  Tambaya: Wane bangare ne na hasken haske za a iya ganowa ta hanyar kayan aiki mai mahimmanci?
matsanancin ɓangaren ultraviolet