czsky/en/star/hr4057.md

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---
name: Algieba (γ Leonis)
constellation: Leo
created_by: editor.cs
created_date: 2023-11-05 16:27:52.351151
updated_by: editor.cs
updated_date: 2023-11-05 16:27:52.351155
---
"The Lion's Forehead", a corrupted name of the Arabic word Al Jabha. In reality, it is a beautiful double star located 8 degrees SSW from the star Regulus, with yellow-orange components of 2.2 magnitude (about 90 times the brightness of the Sun) and 3.5 magnitude (about 30 times the brightness of the Sun) at a separation of 4.4", with a noticeable contrast that can be perceived as green. Their mutual orbital period is estimated to be 619 years. Even in 1782, when William Herschel first discovered this attractive double star, the angular separation of its components was less than 2". Since then, the separation has significantly increased and by the end of the 20th century, it reached almost 4.4".