66 Alggiona (also nicknamed "The Metal Sun") is a small and bizarre type of star known as a Frozen Star. Located near the core of a metal-rich dwarf galaxy, 66 Alggiona formed with so much metals that it became more of a giant planet than a star. It is powered by both nuclear fusion and radioactive decay in its searing core. However, 66 Alggiona is a very cool star with a surface temperature of just 308 degrees Kelvin.

Discovered in 10073 by a rogue space probe, 66 Alggiona has been a hotspot for extragalactic scientists, who have come to study the star and its three planets. The second planet, Gerbi, has been placed under environmental protection to preserve its fragile ecosystem.

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