Matsayi: Sama da chromosphere, a cikin wani m (game da 200 km) miƙa mulki yankin, da yawan zafin jiki ya tashi cikin sauri daga kusa da 20,000 K a cikin babba chromosphere zuwa coronal yanayin zafi kusa da 1,000,000 K. A yawan zafin jiki karuwa ne sauƙaƙe da cikakken ionization na helium a cikin miƙa mulki yankin, wanda muhimmanci rage radiative sanyaya na plasma. The miƙa mulki yankin ba ya faru a wani da-ayyana tsawo. A maimakon haka, shi siffofi da wani irin nimbus a kusa da chromospheric fasali kamar spicules da filaments, kuma shi ne a cikin m, m motsi. The miƙa mulki yankin ba sauƙi a bayyane daga ƙasa surface, amma shi ne readily observable daga sararin samaniya da na'urorin m zuwa matsananci ultraviolet rabo daga bakan. The iska ne na gaba Layer na Sun. The low Layer na Sun, kusa da surface na corona, yana da cikakken ionization na helium a cikin miƙa mulki yankin, wanda muhimmanci rage radiative sanyaya na plasma.
matsanancin ɓangaren ultraviolet