The Hungarian-made Automated Telescope (HAT) surveys are a set of projects designed to search for exoplanets in orbit around bright stars using small robotic telescopes. These couple off-the-shelf lens and astrograph systems with large-format CCD cameras, robust hardware, and sophisticated control software to allow fully autonomous 24-hour operations for all of our observing sites across the globe. The HAT surveys' Principal Investigator is Gáspár Bakos, Associate Professor in the Department of Astrophysical Sciences at Princeton University.
The original HATNet survey started in 2003, and has discovered 61 exoplanets to date. The HATSouth survey extended the reach of our project to the Southern hemisphere, and has discovered 44 planets since its start in 2009. HATPI, the newest of the HAT surveys, is in active development. It will monitor the entire sky visible from its site in Chile to detect exoplanets around bright stars and provide real-time monitoring and alerts for transient astrophysical phenomena, such as novae and near-Earth asteroids.