Adelphous

• Located in Beta Quadrant within Federation space (DIS: "Magic to Make the Sanest Man Go Mad"; TOS Novel: The Captain's Oath; TNG: "Data's Day")
  • Relatively near to Rasalas, Bardeezi (TOS Novel: The Captain's Oath)

Known Planets

• Class N planet (TOS Novel: The Captain's Oath)
  • Proper surface conditions to support liquid sulfuric acid (TOS Novel: The Captain's Oath)
• Adelphous IV