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The MAGIC experiment is a system of two Imaging Atmospheric Cherenkov Telescopes located in the Canary Island of La Palma (Northern hemisphere). It has an energy threshold of 50 GeV, the lowest among the currently operating Cherenkov telescopes, which makes it particularly suitable for the observation of extragalactic sources at Very High Energies (VHE, E>100 GeV). MAGIC has detected numerous blazars, which are active galactic nuclei whose jet axis is pointed towards the observer. Here we present one of our latest detections, the BL Lac 1ES 1727+502, located at redshift z=0.055. The source was a promising TeV candidate based on archival data and the observation that leads this detection was not triggered by any high state alert in other wavebands. We complemented our data with multiwavelength observations: optical data from the KVA telescope, UV, optical and X-ray data taken with the instruments on board the Swift satellite and High Energy (HE, 100; MeV < E < 100; GeV) data from the Fermi-LAT (Large Area ...

MAGIC discovery of the BL Lac 1ES 1727+502: Multiwavelength observations, spectral behavior and variability