The Discovery of Tidal Tails around the Globular Cluster NGC 5466

We report the discovery of tidal tails around the high-latitude Galactic globular cluster NGC 5466 in Sloan Digital Sky Survey data. Neural networks are used to reconstruct the probability distribution of cluster stars in ug r i z space. The tails are clearly visible once extragalactic contaminants and field stars have been eliminated. They extend ~4° on the sky, corresponding to ~1 kpc in projected length. The orientation of the tails is in good agreement with the cluster's Galactic orbit, as judged from the proper-motion data.