Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Passage: Nke a bụ nnukwu kpakpando nwere ọkwa kpakpando nke K4 III. Ọ na-enwu gbaa okpukpu otu narị na iri atọ karịa anyanwụ. Kochab erutela n'ọgbọ nke evolushọn ya ebe mkpuchi elu ya gbasaworo ruo okpukpu 42 karịa okirikiri nke anyanwụ. Igwe ikuku a gbasawanyere agbasawanye na-enwu ọkụ okpukpu 390 karịa nke Sun site na ikuku ya dị na mpụga na ọnọdụ dị irè nke 4.030 K. Okpomọkụ a na-enye kpakpando ahụ oroma na-egbukepụ egbukepụ nke kpakpando ụdị K. Site n'ịmepụta kpakpando a dabere na usoro evolushọn, enwere ike ịtụle oke nke kpakpando a dị ka 2.2 ± 0.3 nke anyanwụ. Nkọwapụta nke ịdị arọ ya site n'iji radius nke kpakpando a nke e ji interferometric tụọ na ike ndọda ya nke e ji spectroscopic chọpụta na-enye 2.5 ± 0.9 nke ịdị arọ anyanwụ. A maara na kpakpando ahụ na-enwe mgbanwe oge na-agbanwe na luminosity n'ihe dị ka ụbọchị 4.6, yana ugboro ole astroseismic na-adabere na oke kpakpando ahụ. Site na nke a, a na-enweta ihe dị ala karịa 1.3 ± 0.3 anyanwụ.  Ajụjụ: Olee otú kpakpando ndị buru ibu na-adị?
K4 nke Atọ