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We present the discovery of three new Milky Way satellites from our search for compact stellar overdensities in the photometric catalog of the Panoramic Survey Telescope and Rapid Response System 1 (Pan-STARRS 1, or PS1) 3 survey. The first satellite, Laevens 3, is located at a heliocentric distance of d = 67 3 kpc. With a total magnitude of M V = -4.4 0.3 and a half-light radius of r h = 7 2 pc, its properties resemble those of outer halo globular clusters. The second system, Draco II/Laevens 4, is a closer and fainter satellite (d 20 kpc, M V = -2.9 0.8), whose uncertain size (r 19 pc
Laevens et al. (Tue,) studied this question.