Search for and Characterization of Open Clusters Toward the Galactic Anti-center with Pan-STARRS1

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We have used a star-count algorithm based the Panoramic Survey Telescope And Rapid Response System 3π survey data aim to identify and characterize uncharted open clusters (OCs). With limiting magnitudes of about 22 mag in,, bands and about 20 mag in and bands, our data are 100 times more sensitive than currently available surveys. We analyzed a trial region within 20°×20° field toward the Galactic anticenter and found 1660 density enhancement regions of which 79 (out of 129) are known OCs, and 949 are OC candidates.