- "Anthan 1 rests within the voluminous gaseous atmosphere of Anthan Prime itself…"
Anthan 1 was a moon that orbited the planet Anthan Prime in the Anthan system. It was so close to the gas giant that it laid within the Thanteen Substrata, an upper layer of the planet's gaseous atmosphere, and was the site of the Plasma Devils' base.
- Darth Vader 11: Shadows and Secrets, Part V (First mentioned)
- Darth Vader 12: Shadows and Secrets, Part VI (First appearance)