↩ 🔵 🔵 🔵 ❪✺₁ᵢ❫ Black Hole Classes ○ ❪✺₁.❫⁺ Classes of Astronomical Objects ○ ❪✺₁❫ High-Energy Astrophysics Classes ○ ❪✺₁❫ Relativistic Classes ○ Black Hole ○꠹ Intermediate-Mass Black Hole ○꠹ Primordial Black Hole ○꠹ Stellar-Mass Black Hole ○꠹ Supermassive Black Hole ○꠹