<prompt> Chimwe chikonzero ndechokuti makemikari peculiarity kungava mugumisiro diffusion kana Misa kurasikirwa, kunyange zvazvo stellar mienzaniso anoratidza kuti izvi kazhinji chete kuitika pedyo kuguma nyeredzi kuti rehydrogen-kupisa lifespan. Chimwe mukana ndechokuti nyeredzi yakaumbwa kubva interstellar svikiro wegasi uye guruva raiva zvisingawanzoitiki simbi-murombo. The akacherechedza nehelium kuti rehydrogen reshiyo iri 0.030 0.005, riri pamusoro 40 yakaderera pane zuva. Izvi zvinogona kukonzerwa nokutsakatika ane nehelium convection nzvimbo pedyo pemvura.  <response>: isina kusimba 