|Appeared in|| Man of Steel Prequel|
Man of Steel
|Star System||Rao system|
Rao is Krypton's sun.
Man of Steel: "Krypton Documentary"Edit
Rao is the 13-billion-year-old red sun of the planet Krypton. It is a red dwarf star that's size is five times that of Earth's sun, yet only forty percent as dense.