All things · Groups & Clusters
Local Group: how big is it?
Local Group is about 10 million light-years. In everyday terms, that is ≈ 100 Milky Ways.
- Size
- 10 million light-years
- In metres
- 9.50 × 10²² m
- Everyday comparison
- ≈ 100 Milky Ways
- Chapter
- Groups & Clusters
Did you know?
Our galactic neighbourhood: dozens of galaxies, including the Milky Way and Andromeda.
How it compares
- About 4× bigger than Distance to Andromeda (2.54 million light-years).
- About 1.5× smaller than Virgo Cluster (14.8 million light-years).
Other things of a similar size
- Milky Way 100,000 light-years
- Andromeda Galaxy 220,000 light-years
- Distance to Andromeda 2.54 million light-years
- Virgo Cluster 14.8 million light-years
- Boötes Void 328 million light-years
- Laniakea Supercluster 518 million light-years
Sizes are rounded, typical values drawn from standard reference sources, including NIST/CODATA physical constants and NASA's planetary fact sheets. Real objects vary; see About for how sizes are chosen.