czsky/en/star/hr5054.md

9 lines
439 B
Markdown

---
name: Mizar a Alcor (ζ a 80 UMa)
constellation: UMa
created_by: editor.cs
created_date: 2023-11-07 09:27:53.053940
updated_by: editor.cs
updated_date: 2023-11-07 09:27:53.053945
---
The most famous binary star, which Arabs used to call "guide" or "sharpness tester of vision". The mutual distance between the two stars is 12', so a healthy eye can easily distinguish them practically always. They form a nice pair even in a telescope.