- Active Galactic Nucleus (AGN) ○꠹
- Binary Star ○꠹
- Black Hole ○꠹
- Blazar ○꠹
- Cataclysmic Variable Star (CV) ○꠹
- Galaxy ○꠹
- Galaxy Cluster ○꠹
- Gamma-Ray Burst ○꠹
- Magnetar ○꠹
- Nebula ○꠹
- Neutron Star ○꠹
- Nova ○꠹
- Pulsar ○꠹
- Quasar ○꠹
- Star ○꠹
- Star System ○꠹
- Supernova ○꠹
- Supernova Remnant (SNR) ○꠹
- Tidal Disruption Event ○꠹
- White Dwarf ○꠹
- Wolf-Rayet Star ○꠹
- X-Ray Binary (XRB) ○꠹