V404 Cygni

E1229120 UNEXPLORED

V404 Cygni is a well-known black hole X-ray binary system in the constellation Cygnus, notable for its dramatic outbursts and strong variability.

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Full triples — surface form annotated when it differs from this entity's canonical label.

constellation Cygnus → containsVariableStar → V404 Cygni ⓘ

subject surface form: Cygnus