czsky/en/star/hr7417.md

559 B

name constellation created_by created_date updated_by updated_date
Albireo (β Cygni) Cyg editor.cs 2022-01-21 17:00:00 skybber 2022-01-27 17:51:44.054210

forms the head of the Swan or the lower end of the cross and is one of the most beautiful contrasting double stars. Since the orbit of the fainter star around the brighter one cannot be directly observed, it cannot be said with certainty that it is a physical binary. The system is approximately 400ly away. The main component is 950 times and the secondary 230 times brighter than the Sun.