The HATNet and HATSouth exoplanet surveys

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7 Scopus citations


The Hungarian-made Automated Telescope Network (HATNet) has been in operation since 2003, with the key science goal being the discovery and accurate characterization of transiting extrasolar planets (TEPs) around bright stars. Using six small, 11 cm aperture, fully automated telescopes in Arizona and Hawaii, as of March 2017, it has discovered and accurately characterized 67 such objects. The HATSouth network of telescopes has been in operation since 2009, using slightly larger, 18 cm diameter optical tubes. It was the first global network of telescopes using identical instrumentation. With three premier sites spread out in longitude (Chile, Namibia, Australia), the HATSouth network permits round-theclock observations of a 128 square arcdegree swath of the sky at any given time, weather permitting. As of this writing, HATSouth has discovered 36 transiting exoplanets. Many of the altogether ~100 HAT and HATSouth exoplanets were the first of their kind. They have been important contributors to the rapidly devel-oping field of exoplanets, motivating and influencing observational techniques and theoretical studies and also actively shaping future instrumentation for the detection and characterization of such objects.

Original languageEnglish (US)
Title of host publicationHandbook of Exoplanets
PublisherSpringer International Publishing
Number of pages11
ISBN (Electronic)9783319553337
ISBN (Print)9783319553320
StatePublished - Nov 3 2018

All Science Journal Classification (ASJC) codes

  • General Physics and Astronomy
  • General Earth and Planetary Sciences


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