czsky/en/star/hr4399.md

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name constellation created_by created_date updated_by updated_date
ι Leonis Leo 8mag 2022-01-21 17:00:00 skybber 2022-02-07 15:39:36.413071

a remarkable double star. The two components with brightnesses of 4.1mag and 7.0mag orbit each other in about 180 years. In 1985, they were 1.3" apart, but they begin to drift apart, reaching 1.7" by the year 2000, making the binary resolvable in at least a 10 cm telescope.