Messier 99
M99
📋 A written introduction is coming — for now this page shows official values only.
Object
- Type (NASA)
- Spiral Galaxy
- Distance from Earth
- 55,000,000 light-years
- Apparent magnitude
- 10.4 mag
- Apparent size
- 5 ′
- NASA description
- Hubble images provide detailed views of one of this grand spiral's arms.
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 55,000,000 years to reach Earth — the light you see tonight left 55,000,000 years ago (official distance ÷ speed of light).
- At magnitude 10.4 it is fainter than the naked-eye limit (about 6) — you need binoculars or a telescope.
- It spans about 5′ of sky — about 1/6 of the full Moon's 31′.
Worked out from this object's official values.