Kana nyeredzi mbiri dziine envelope yakafanana, ipapo hurongwa hunogona kurasikirwa nehuwandu hwakawanda hwehuwandu, zvichideredza angular momentum, orbital radius uye nguva. Mushure mekunge nyeredzi yekutanga yadzikira kuita chena dwarf, nyeredzi yechipiri inozove red giant uye nhanho yakagadzirirwa kuunganidzwa kwehuwandu kune yekutanga. Munguva iyi yekupedzisira yakagovaniswa-envelope, nyeredzi mbiri dzinotenderera pamwechete padhuze padhuze padhuze.
Chandrasekhar muganhu