Dawn 5 is the designation of one of the 10,000 Dawns.
In Dawn 5, Graelyn Scythes is a good person of minor importance to world events, in contrast to her Prime self, an utterly wicked individual. The Manuel Salazar of Dawn 5, unlike his honorable counterpart in Dawn 6, was for his part a dangerous maniac who built Ahnerable Station, and cyborgs like Archimedes Von Ahnerabe in hope of world domination.
Behind the scenes
First appearing in 10,000 Dawns, Dawn 5 is understandably one of the most important settings of the 10,000 Dawns series, being the original homeworld of two of the main characters (Graelyn and Arch). Notably, in early reference material, it was referred to as Dawn 2.