Messier 40
M40 · null
📋 A written introduction is coming — for now this page shows official values only.
Object
- Apparent magnitude
- 8 mag
Source:NASA HEASARC (Goddard Space Flight Center) · checked 2026-11-02 ↗
Related
Constellation
In everyday life
- At magnitude 8 it is fainter than the naked-eye limit (about 6) — you need binoculars or a telescope.
- It lies in Ursa Major — find the constellation first to know where to look.
- Number 40 in the 110-object Messier catalog — guides call it «M40».
Worked out from this object's official values.