We construct a catalog of star clusters from Hubble Space Telescope images of the inner disk of the Triangulum Galaxy (M33) using image classifications collected by the Local Group Cluster Search (LGCS), a citizen science project hosted on the Zooniverse platform. We identify 1214 star clusters within the Hubble Space Telescope imaging footprint of the Panchromatic Hubble Andromeda Treasury: Triangulum Extended Region (PHATTER) survey. Comparing this catalog to existing compilations in the literature, 68% of the clusters are newly identified. The final catalog includes multiband aperture photometry and fits for cluster properties via integrated light spectral energy distribution fitting. The cluster catalog's 50% completeness limit is ~1500M_{sun}_ at an age of 100Myr, as derived from comprehensive synthetic cluster tests.
Cone search capability for table J/ApJ/938/81/table1 (PHATTER M33 cluster catalog)
Cone search capability for table J/ApJ/938/81/table4 (Literature cross-matching results)
Cone search capability for table J/ApJ/938/81/table5 (*Ancillary catalog)
Cone search capability for table J/ApJ/938/81/table6 (Synthetic cluster results)
Cone search capability for table J/ApJ/938/81/table7 (Background galaxy catalog)
Cone search capability for table J/ApJ/938/81/table8 (*Emission region catalog)
Cone search capability for table J/ApJ/938/81/table9 (SLUG results for PHAT M31 clusters; see Appendix B)