Red sun



A red sun was a type of star that was red or reddish in color.

Unlike a yellow sun, which was capable of giving Kryptonian's incredible superhuman abilities, a red sun would take them away, as this was the natural environment that a native of Krypton lived under, as their planet orbited a Rao, which itself was a red sun.

When Marvin White was telling Doctor LeBon and Wilbur the story of Superman's origin, he told them that Krypton orbited a red sun.

External Link

 * sun Red sun at Wikipedia