Caldwell 40
C40
📋 A written introduction is coming — for now this page shows official values only.
Object
- Type (NASA)
- Spiral Galaxy
- Distance from Earth
- 70,000,000 light-years
- Apparent magnitude
- 10.6 mag
- NASA description
- Hubble’s Wide Field Camera 3 helped astronomers better understand the cores of galaxies like Caldwell 40.
Source:NASA Hubble (Messier/Caldwell catalogs) · checked 2026-11-02 ↗
Related
Constellation
In everyday life
- Light from this object takes about 70,000,000 years to reach Earth — the light you see tonight left 70,000,000 years ago (official distance ÷ speed of light).
- At magnitude 10.6 it is fainter than the naked-eye limit (about 6) — you need binoculars or a telescope.
- It lies in Leo — find the constellation first to know where to look.