Caldwell 39
C39
📋 A written introduction is coming — for now this page shows official values only.
Object
- Type (NASA)
- Planetary Nebula
- Distance from Earth
- 5,000 light-years
- Apparent magnitude
- 9.2 mag
- NASA description
- A dying star at Caldwell 39's heart began shedding its outer layers 10,000 years ago.
Source:NASA Hubble (Messier/Caldwell catalogs) · checked 2026-11-02 ↗
Related
Constellation
In everyday life
- Light from this object takes about 5,000 years to reach Earth — the light you see tonight left 5,000 years ago (official distance ÷ speed of light).
- At magnitude 9.2 it is fainter than the naked-eye limit (about 6) — you need binoculars or a telescope.
- It lies in Gemini — find the constellation first to know where to look.