| structure | nearest neighbor | diameter | mass | gap to nearest neighbor | # civilizations |
|---|---|---|---|---|---|
| our Solar System | (nearest neighbor: Proxima Centauri) | 0.0018 ly | 1.001 M⊙ | 4.2 ly | 1 |
| M 4 and NGC 6397 globular clusters | 70 ly | unknown | 0 | ||
| Milky Way Galaxy | (nearest neighbor: Canis Major Dwarf Galaxy) | 100,000 ly | 5.8×1011 M⊙ | 25,000 ly (from Earth) | 37964.97±20 |
| Milky Way subgroup | (nearest neighbor: Andromeda subgroup) | 1.8 mly | 2 mly (from Earth) | ||
| Local Group | (nearest neighbor: IC 342/Maffei Group) | 10 mly | 1.29×1012 M⊙ | 9.1 mly (from Earth) | |
| Virgo Supercluster | (nearest neighbor: Hydra-Centaurus Supercluster | 200 mly | 1015 M⊙ | 158 mly (from Earth) | |
| Centaurus Wall? | (nearest neighbor: ?) |