It is possible that the name “Asteria” was used elsewhere in the main DC continuity, but so far, I am not aware of it.
But the name Asteria has some other meaning, and the way in which Wonder Woman 1984 uses the character here skillfully links to the first Wonder Woman origin story in smart ways.
The name Asteria appears many times in Greek mythology. But, like anything that involves Wonder Woman on the page or on the screen, this mythology can be freely adapted just to meet the needs of the story being told at any time. But the fourth book of Diodorus Siculus’ massive Librarian history deals with Greek mythology and refers to Asteria as one of the Amazons killed by Hercules when he tried to remove Hipólita’s belt.
And that’s where Asteria’s Wonder Woman 1984 begins to align slightly with the mythological version and the DC Comics stories. In mythology, one of the 12 works of Hercules was to recover the belt of Hipólita (the mother of Wonder Woman). This became part of the basis for the origin of Wonder Woman, as told in her first appearance in 1941 All Star Comics # 8 by William Moulton Marston and HG Peter, where the loss of Hippolyta’s belt leads to Hercules and the army of men enslaving the Amazons. Even after their escape, they use those iconic bracelets as a reminder to never allow themselves to be enslaved by men again.
At the Librarian history, Asteria is one of the Amazons who falls in the battle with Hercules before he recovers Hippolyta’s belt. To be clear, Asteria is never mentioned in those early Wonder Woman stories, but the film’s tale of how she stayed behind to allow the rest of the Amazons to escape is a nod to this part of her otherwise original story. unexplored on the big screen. It is a clever and subtle way to combine the mythological roots of Wonder Woman with her origins in the comics.