A ci gaba da taurari - mai ja giant

Red giant kuma supergiant - shi ne sunan sarari abubuwa tare da Extended bawo da high luminosity. Sun kasance a cikin marigayi na azuzuwan K kuma M. Su radii wuce rana daruruwan sau. Matsakaicin radiation taurãri lissafinsu da ja da infrared yankin na bakan. A Hertzsprung- - Russell ja giant located sama da babban layin jerin, su cikakkar girma dabam dan kadan sama sifili ko wani mummunan darajar.

A fannin irin wannan star wuce rãnã yankin akalla 1500 sau, da kuma yayin da diamita ne game da 40 sau more. Tun da bambanci a cikakkar darajar da mu luminary ne game da biyar, shi dai itace cewa da ja giant fitarda sau ɗari fiye da haske. Amma ya ke yawa colder. Solar zafin jiki sau biyu kwaikwayon na wani ja giant, sabili da haka da naúrar na surface yankin na hasken tsarin mu fitarda haske a goma sha shida sau more.

A bayyane star ta launi dogara da surface zazzabi. Our Sun aka kona sai fari, kuma yana da gwada da kananan size, don haka shi ne ake kira rawaya Dwarf. Mai sanyaya taurari ne orange da kuma ja haske. Kowane star a kan aiwatar da ta juyin halitta zai iya kai na karshe na na azuzuwan da kuma zama ja giant a matakai biyu na ci gaba. Wannan na faruwa a lokacin da nucleation mataki zuwa star ko a karshe mataki na ci gaba. A wannan lokaci, wani ja giant fara emit makamashi da nasu gravitational makamashi sake idan aka matse.

Kamar yadda star aka matsa, ta zazzabi ƙaruwa. A lokaci guda, saboda da rage a cikin size daga cikin farfajiya, a sau da dama shi luminosity. Ta mutu. Idan wannan shi ne "matasa" ja giant, shi zai kawo karshen sama masa ciwon hanji fara dauki na thermonuclear kira na helium daga hydrogen. Bayan haka, matasa star zai bar babban jerin. A tsohon star wani daban-daban rabo. A baya matakai na ci gaba da hydrogen a cikin ciki fitilu Fade gaba daya. Bayan da tauraron ya fita daga babban jerin. Bisa ga Hertzsprung - Russell, ta koma supergiants da kuma ja Refayawa. Amma kafin a ci gaba da wannan mataki, shi ya wuce wani tsaka-tsaki mataki - subgiant.

Subgiants kira taurari a cikin nucleus din wanda daina hydrogen Fusion halayen, amma kona helium ya ba tukuna fara. Wannan na faruwa saboda kwaya bai isa ba warmed up. Wani misali na wannan za a iya subgiant Arthur, located in da ƙungiyar taurari Boötis. Shi ne wani orange Ko'ina tare da bayyana girma -0,1. An located a nesa daga Sun ne game da 36 - 38 haske shekaru. Watch ta iya zama a cikin Arewacin Hemisphere a watan Mayu, idan ka dubi kai tsaye kudu. Arthur diamita 40 sau da hasken rana.

Yellow Dwarf rana ne mai gwada matasa star. Its shekaru da aka kiyasta su zama 4,57 shekaru biliyan haihuwa. A cikin babban tsari, ana za har yanzu kasance game da biliyan 5 shekaru. Amma da masana kimiyya sun iya canzawa duniya a cikin abin da rãnã - mai ja giant. Its girma za su yi girma 200-Musulunci da kuma kai Earth madawwama biyu, incinerating Mercury da Venus. Hakika, rayuwa a wannan lokaci ne ba zai yiwu. A wannan mataki, rana zai šauki kamar wani miliyan 100 shekara, bayan wanda shi zai zama planetary nebula , da kuma zama wani farin Dwarf.