Rangarira ndima iri pasi apa uye ipapo pindura mubvunzo gare gare mumutauro mumwe chetewo sechikamu:  Passage: The spectrum of A-class stars such as IK Pegasi A show strong Balmer lines of hydrogen along with absorption lines of ionized metals, including the K line of ionized calcium (Ca II) at a wavelength of 393.3 nm. Spectrum ye IK Pegasi A inonzi marginal Am (kana kuti "Am:"), zvinoreva kuti inoratidza unhu hwekirasi ye spectral A asi ine marginal metallic-lined. Ndokunge, mhepo yenyeredzi iyi inoratidza zvishoma (asi zvisina kujairika) yakakwirira kupfuura yakajairika yekumwa mutsara masimba esimbi isotopes. Nyeredzi dzorudzi rwomumvuri Am dzinowanzova nhengo dzemapoka maviri akavhengana ane shamwari ine uwandu hwakaenzana, sezvinoitika kuna IK Pegasi. Nyeredzi dzorudzi rwomumvuri-A dzinopisa zvikuru uye dzine uwandu hukuru kupfuura Zuva. Asi, somugumisiro, nguva yavanorarama pachikamu chikuru ipfupi zvikuru. Nokuda kwenyeredzi ine uwandu hwakafanana ne IK Pegasi A (1.65 M<unk>), upenyu hunotarisirwa pahurongwa hukuru huri 2<unk>3 × 109 makore, iyo inenge hafu yezera razvino reZuva. Mukutaura kwehuwandu, Altair muduku zvikuru ndiyo nyeredzi iri pedyo neZuva iyo inonzi nyeredzi yakafanana nechikamu cheA<unk> ine inofungidzirwa 1.7 M<unk>. Gadziriro yebhinari yose zvayo ine zvimwe zvakafanana negadziriro iri pedyo yeSirius, iyo ine kirasi-A yokutanga uye shamwari yenyeredzi duku chena. Zvisinei, Sirius A yakakura zvikuru kupfuura IK Pegasi A uye nharaunda yayo yakakura zvikuru, ine semimajor axis ye20 AU.  Mubvunzo: IK Pegasi muenzaniso worudzii rwechiedza?
Nyeredzi dzeA-class