2026-07-072026-07-07http://salesiana.dossiersoluciones.com/handle/123456789/122817We report detection of an optical flare in the BY Draconis type star FR Cnc. The flare duration is 41 min, the amplitude is in the B band 1.02 m. It is the first flare reported for this object.Published in IBVS 5748Astrophysicstext