HATNet (Hungarian Automated Telescope Network) is a set of automated (robotic) telescopes to search for Transiting Planets. HAT-1, which began operation in 2001 at Konkoly Observatory in Budapest, originated with a 512 x 768 CCD, and as later upgraded to a 65mm Aperture telescope with a Field of View of 8 degrees by 8 degrees, with a 2k x 2k CCD. Currently, HATNet consists of 7 telescopes at Fred Lawrence Whipple Observatory and Mauna Kea Observatories.
A further effort, HAT-South is six telescopes in Australia, Namibia, and Chile. In 2017, 29 Extra-Solar Planet discoveries are credited to them.
Fred Lawrence Whipple Observatory (FLWO)