czsky/en/star/hr4234.md

name	constellation	created_by	created_date	updated_by	updated_date
δ Cha	Cha	8mag	2022-01-21 17:00:00	skybber	2022-01-24 14:48:32.713979

a wide binary star whose 4.4mag and 5.5mag brightness components are 7' apart, so we can distinguish them with the naked eye. In the binocular we can see their different white and orange hues. It is an optical binary: the brighter component is 364 light years away, the fainter one is 10 light years closer. However, the brighter component is actually a very close physical binary, which can only be resolved with a large telescope.