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We present the discovery of a faint Milky Way satellite, Laevens 2/TriangulumII, found in the Panoramic Survey Telescope And Rapid Response System(Pan-STARRS 1) 3 pi imaging data and confirmed with follow-up wide-fieldphotometry from the Large Binocular Cameras. The stellar system, with anabsolute magnitude of M_V=-1.8 +/-0.5, a heliocentric distance of 30 +2/-2 kpc,and a half-mass radius of 34 +9/-8 pc, shows remarkable similarity to faint,nearby, small satellites such as Willman 1, Segue 1, Segue 2, and Bo\"otes II.The discovery of Laevens 2/Triangulum II further populates the region ofparameter space for which the boundary between dwarf galaxies and globularclusters becomes tenuous. Follow-up spectroscopy will ultimately determine thenature of this new satellite, whose spatial location hints at a possibleconnection with the complex Triangulum-Andromeda stellar structures.

A New Faint Milky Way Satellite Discovered in the Pan-STARRS1 3 pi Survey