- Bright Stars
- Double Stars
- Landolt UBVRI Standard Stars
- Johnson UBVRI Standard Stars
- uvby and HΒ Standard Stars
- Spectrophotometric Standard Stars
- Radial Velocity Standard Stars
- Variable Stars
- Exoplanets and Host Stars
- Bright Galaxies
- Open Clusters
- Globular Clusters
- ICRF2 Radio Source Positions
- Radio Flux and Polarization Calibrators
- X-Ray Sources
- Quasars
- Pulsars
- Gamma Ray Sources