Messier 7
M7
👁️ Naked-eye
📋 A written introduction is coming — for now this page shows official values only.
Object
- Type (NASA)
- Open Cluster
- Distance from Earth
- 980 light-years
- Apparent magnitude
- 3.3 mag
- Apparent size
- 80 ′
- NASA description
- This open cluster is the southernmost object in Messier's catalog.
Source:NASA Hubble (Messier/Caldwell catalogs) · checked 2026-11-02 ↗NASA HEASARC (Goddard Space Flight Center) · checked 2026-11-02 ↗
Related
Constellation
In everyday life
- Light from this object takes about 980 years to reach Earth — the light you see tonight left around AD 1046 (official distance ÷ speed of light).
- At magnitude 3.3 it is bright enough for the naked eye (limit about 6) — look from somewhere dark.
- It spans about 80′ of sky — about 2.6 times the full Moon's 31′.