Alkam agejdan

Alkam agejdan di tesnallunt d azlem uddinan n yitran issiliɣ-d azal n 80% seg yitran yemgaraden deg umeɣrad, tessegraw-it-id yiwet n twenɣa ,i wakken ad t-ittessesmel s unect n yini d tedwast n usfijjej. Itran n welkem agejdan ttwassnen s akken tafasa n usfijjej-nsen d tin i d-yekkan seg tsedmirt n  wezday aɣisan n uhidṛujin deg wul n yitri, dɣa anecta iga d snat n tsedmirin n wezday aɣisan i d-igellun s [[Hilyum|uhilyum].

Tawenɣa issegrawen ger n tkura n yitri d yini n yini waylal-is d tedwast n usfijjej-is tettwasemma s usesmel n Hertzsprung–Russell, ma d tagrawt n yitran n ubaggus-a di twenɣa-ayi tettwasemma s welkem agejdan, acku tessiliɣ-d azal n 80% seg telmas n yitran yellan deg umeɣrad. Ma d isesmilen n yitran yeffɣen seg ubaggus-a agejdan ssesmilen-d 20% seg yitran n umeɣrad, dɣa ttemsegrawen-d di twenɣa ɣef sin n yibaggusen niḍen, yerna iglamen-nsen mgaraden s waṭas ɣef yiglamen n yitran n welkem agejdan, acku asufeɣ-nsen d ufares-nsen i tfasa yettuɣal ɣer tsedmirin niḍen anagar azday aɣisan n uhidṛujin i d-igellun s uhilyum.

 Addar n yitri 

 Beṭṭu n welkam agejdan 

 Ansa n tfukt deg welkam agejdan 

 Ẓeṛ daɣen 
Taggayt:Tasnallunt
Taggayt:Tilmas n yitran
Taggayt:Itran n welkam agejdan
Taggayt:Tamhazt n yitran