Caldwell 27
C27
📋 A written introduction is coming — for now this page shows official values only.
Object
- Type (NASA)
- Planetary Nebula
- Distance from Earth
- 4,700 light-years
- Apparent magnitude
- 8.8 mag
- NASA description
- Also called the Crescent Nebula or NGC 6888, Caldwell 27 holds a massive, incredibly hot star at its heart.
Source:NASA Hubble (Messier/Caldwell catalogs) · checked 2026-11-02 ↗
Related
Constellation
In everyday life
- Light from this object takes about 4,700 years to reach Earth — the light you see tonight left 4,700 years ago (official distance ÷ speed of light).
- At magnitude 8.8 it is fainter than the naked-eye limit (about 6) — you need binoculars or a telescope.
- It lies in Cygnus — find the constellation first to know where to look.