The Sun Dies

≈ 18.8 billion years — 5 billion years from now · Far Future

Temperature (K): 2.3
When: ≈ 18.8 billion years — 5 billion years from now
Redshift: —
Era: Far Future
Seconds After Big Bang: 593270284000000000

What Happened

The Sun exhausts its hydrogen, swells into a red giant reaching roughly Earth's orbit, and collapses into a white dwarf: half its present mass packed into an Earth-sized ball, cooling for the rest of time.

Researchers

Arthur Eddington Cecilia Payne-Gaposchkin

Equations

Stefan–Boltzmann Law Chandrasekhar Limit Wien's Displacement Law

Theories

Stellar Nucleosynthesis

Referenced by

equation

Chandrasekhar Limit Stefan–Boltzmann Law Wien's Displacement Law

researcher

Arthur Eddington Cecilia Payne-Gaposchkin

theory

Stellar Nucleosynthesis

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From the Cosmic Timeline database in Notion, last edited 2026-08-16. This page is the row, rendered by the build; nothing on it is written by hand.