Daxam
Sector 2815 — a world of supermen who fear the stars.
Daxam sits in Space Sector 2815, home to a people who could rule the stars — and refuse to. The Daxamites descend from Kryptonian explorers, and under a yellow sun they gain the same godlike powers: flight, invulnerability, heat vision, super-strength. But Daxam orbits a red sun, which keeps them merely human. And they prefer it that way. Daxamite culture is fiercely xenophobic; leaving the planet is forbidden, outsiders are despised, and their one great vulnerability — lead, which is fatally toxic to them — is treated as a shameful secret.
One Daxamite dared to dream of the stars: Sodam Yat. As a boy he befriended a crashed alien pilot, watched his parents murder the alien, and rebuilt the ship in secret to escape. The night he meant to leave, a green ring found him. Sodam Yat became the Corps' prophesied "Torchbearer" — and during the Sinestro Corps War, he flew into Daxam's red sun as the host of Ion and ignited it yellow, giving every Daxamite Superman-like power to repel Mongul's invasion. It was the single most heroic act of the war — and it nearly killed him.