The Galileo National Telescope (TNG) is a 3.58-meter Italian telescope, located at the Roque de los Muchachos Observatory on the island of La Palma in the Canary Islands, Spain. It is managed by the "Fundación Galileo Galilei, Fundación Canaria" on behalf of the Italian National Institute of Astrophysics (INAF). TNG is a general-purpose facility open to the international community, equipped with various instruments for optical and infrared observations, including high-resolution spectroscopy. It has contributed to the discovery of exoplanets and the study of various astronomical phenomena.
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Intensive high-cadence monitoring with the HARPS-N spectrograph on the INAF Telescopio Nazionale Galileo (TNG) at La Palma enabled precise measurement of Gaia-6 B’s non-circular orbital shape.
Visible-light observations of 1ES 1927+654 came from Italy’s 3.6-meter Galileo National Telescope and the 10.4-meter Gran Telescopio Canarias on La Palma in the Canary Islands.