When the hydrogen fuel is exhausted, Proxima Centauri will then evolve into a white dwarf (without passing through the red giant phase) and steadily lose any remaining heat energy.
Begitu bahan bakar hidrogen habis, Proxima Centauri akan berubah menjadi katai putih (tanpa melalui tahap raksasa merah) dan pelan-pelan kehilangan sisa energi panasnya.