Stellar life cycle — nebula · main sequence · red giant · supernova · white dwarf / neutron star / black hole

STELLAR LIFE CYCLE SIMULATION

▸ Building the stellar-age axis: birth (nebula) → death (remnant)…

▸ Loading 10 phases: nebula → protostar → main sequence → red giant → …

▸ Calibrating lifetime ∝ mass (L ≈ M^3.5)

▸ Loading 5 mass tracks: 0.3 → 40 M☉

▸ Linking the Hertzsprung–Russell diagram · the star's life path

▸ Ready — Online. ✅

Stellar-age clock

⭐ Star age

Star age—

Mass—

Surface temperature—

Radius (×Sun)—

Current phase—

Final fate—

Viewing—

Selected—

Notes

A star's fate is decided by its mass. The heavier the star, the brighter & faster it burns (L ≈ M³˙⁵) → the shorter it lives. Stars ≤~8 M☉ end as a white dwarf; massive stars explode as a supernova → a neutron star or a black hole.

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Drag the scrub bar below the scene (or ▶/⏸) to go from birth to death · pick a mass to change the fate · click a phase / concept for details

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Luminosity & radius vs star age — the red-giant peak & supernova Luminosity (L)Radius (R)