- You may be looking for the planets Hephaestus VI or Hephastos.
In Earth mythology, Hephaestus (or Hephaistos) was the god of fire, in the same pantheon with Poseidon and Eros. (TV: Planet of Fire)
During their visit to Greek Space, Iris Wildthyme and Panda saw Hephaistos fixing the plaster on one of the vaulted ceilings of Olympos, under the supervision of a bored-looking Athena. He was a brawny god with a hammer in his tunic belt. (PROSE: Wandering Stars)