Rịba ama amaokwu a dị n'okpuru ma zaa ajụjụ ahụ mgbe e mesịrị n'otu asụsụ ahụ dị ka amaokwu ahụ:  Njem: Akụkụ nke kpakpando klas A dị ka IK Pegasi A na-egosi akara Balmer siri ike nke hydrogen tinyere akara absorption nke ọla ionized, gụnyere akara K nke calcium ionized (Ca II) na ogologo ebili mmiri nke 393.3 nm. A na-ekewa ụdịdị IK Pegasi A dị ka Am (ma ọ bụ "Am:"), nke pụtara na ọ na-egosipụta njirimara nke ụdị ụdịdị A ma ọ bụ nke nwere metal. Nke ahụ bụ, ikuku nke kpakpando a na-egosipụta ntakịrị (ma na-adịghị ahụkebe) dị elu karịa ike absorption nkịtị maka isotopes metal. Kpakpando nke ụdị spectral Am na-abụkarị ndị otu nke nso binaries na a enyi nke ihe dị ka otu uka, dị ka ọ bụ ikpe n'ihi na IK Pegasi. Spectral klas-A kpakpando na-ekpo ọkụ na ihe ndị ọzọ oke ibu karịa Sun. Ma, n'ihi ya, oge ndụ ha na isi usoro bụ kwekọrọ na mkpumkpu. Maka kpakpando nwere oke dị ka IK Pegasi A (1.65 M<unk>), ndụ a na-atụ anya ya na isi usoro bụ 2<unk>3 × 109 afọ, nke bụ ihe dị ka ọkara afọ nke Sun ugbu a. N'ihe gbasara oke, Altair dị obere bụ kpakpando kacha nso na Sun nke bụ ihe atụ kpakpando nke ihe A <unk> ọ nwere ihe dịka 1.7 M <unk>. Usoro abụọ ahụ n'ozuzu ya nwere ihe ụfọdụ yiri usoro Sirius dị nso, nke nwere klas nke mbụ na nke na-esote ya nke na-acha ọcha na-acha ọcha. Agbanyeghị, Sirius A buru ibu karịa IK Pegasi A na orbit nke onye ya na ya so buru ibu, ya na semimajor axis nke 20 AU.  Ajụjụ: Kedu ụdị ọkụ bụ IK Pegasi ihe atụ?
Kpakpando klas A