Caldwell 9
C9
📋 A written introduction is coming — for now this page shows official values only.
Object
- Type (NASA)
- Emission Nebula
- Distance from Earth
- 3,000 light-years
- Apparent magnitude
- 8 mag
- NASA description
- Also called the Cave Nebula, Caldwell 9 is an area where new stars are forming.
Source:NASA Hubble (Messier/Caldwell catalogs) · checked 2026-11-02 ↗
Related
Constellation
In everyday life
- Light from this object takes about 3,000 years to reach Earth — the light you see tonight left 3,000 years ago (official distance ÷ speed of light).
- At magnitude 8 it is fainter than the naked-eye limit (about 6) — you need binoculars or a telescope.
- It lies in Cepheus — find the constellation first to know where to look.