---
name: ζ Mon
constellation: Mon
created_by: 8mag
created_date: 2022-01-21 17:00:00
updated_by: skybber
updated_date: 2022-02-06 10:12:17.085476
---
an optical binary star. The main component has a brightness of 5mag, its companion 8.5mag. It lies at a distance of 66.4". The other companion is at 32". We need binoculars with a 7cm diameter objective lens.