The brightest star in the constellation Cygnus, located about 2,600 light-years from Earth; one of the vertices of the Summer Triangle asterism.
From Arabic 'dhanab' meaning 'tail', referring to the tail of the swan constellation. The name was given by medieval Arab astronomers who mapped the night sky.
Deneb is so bright that despite being one of the most distant naked-eye stars, it's often more recognized than closer stars—a humbling reminder that brightness isn't about distance but about the star's intrinsic power.
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