CQ Dra, a confirmed symbiotic star, appears to belong to the open cluster HSC 1224, giving an age near log t ≈ 9.4, about 2.5 billion years.
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Symbiotic stars in Galactic open clusters
CQ Dra, a confirmed symbiotic star, appears to belong to the open cluster HSC 1224, giving an age near log t ≈ 9.4, about 2.5 billion years.