↩ 🔵 🔵 🔵 ❪✺₄❫ Astronomical Sets ○ Astronomical Object ○꠹ ❪◑❫ Galaxies ○ ❪◑❫ Galaxy Clusters ○ ❪◑❫ Nebulae ○ ❪◑❫ Novae ○ ❪◑❫ Star Systems ○ ❪◑❫ Supernova Remnants ○ ❪◑❫ White Dwarves ○ ❪◑❫ X-Ray Binaries ○