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An iron star is a hypothetical type of compact star that could occur in the universe in the extremely far future, after perhaps 101500
Years, Which is a number so large, I can't even fit it on this page. Iron Stars would form in the Dying universe

The premise behind the formation of iron stars states that cold fusion occurring via quantum tunneling would cause the light nuclei in ordinary matter to fuse into iron-56 nuclei. Fission and alpha-particle emission would then make heavy nuclei decay into iron, converting stellar-mass objects to cold spheres of iron. The formation of these stars is only a possibility if protons do not decay. Though the surface of a neutron star may be iron according to some predictions, it is distinct from an iron star.

By the end of 101026 to 101076 years, iron stars would have collapsed into neutron stars and black holes.

  • The Soviet film The Andromeda Nebula is about a starship low on fuel caught by an iron star's gravity, with the star itself being so dim that it can only be seen in the infrared. It is based on the novel Andromeda Nebula by Ivan Yefremov written when steady state theory was dominant and iron stars were expected to exist in the Milky Way.
  • In the episode "Iron Stars" of Civilizations at the End of Time YouTube series, Isaac Arthur discusses about the possibilities of advanced artificial civilizations living around iron stars, and beyond the last viable sources of energy

There's not much known about this star sense its purely fantasy until proven otherwise.

See Also

Stellar Classes
Φ · Ψ · Ω · Q · DE · GR · σ ς · Θ · N · D · BS · Y · T · L · M · C · S · QS · K · G · F · A · B · LBV · β · O · W · N · X · n0 · Exotic (Π · Σ · Γ · Δ · μ) · δ · I · TŻO · BL · ·