Manganaro, MarinaPedaletti, GiovannaDoert, MarleneBastieri, DenisRamazani, Vandad FallahGasparrini, DarioLindfors, ElinaLott, BenoitNievas Rosillo, MireiaRani, BinduThompson, DavidAngelakis, EmmanouilBorman, GeorgeGurwell, MarkHovatta, TalvikkiItoh, RyosukeJorstad, SvetlanaKraus, AlexKrichbaum, ThomasKuin, PaulLähteenmäki, AnneLarionov, ValeriLien, AmyMyserlis, IoannisTornikoski, MerjaTroitsky, IvanZensus, J.2023-06-182023-06-1820162075-443410.3390/galaxies4040069https://hdl.handle.net/20.500.14352/19153S5 0716+714 is a well known BL Lac object, and one of the brightest and most active blazars. The discovery in the Very High Energy band (VHE, E > 100 GeV) by MAGIC happened in 2008. In January 2015, the source went through the brightest optical state ever observed, triggering MAGIC follow-up and a VHE detection with ∼ 13σ significance (ATel ♯6999 ). Rich multiwavelength coverage of the flare allowed us to construct the broad-band spectral energy distribution of S5 0716+714 during its brightest outburst. In this work, we will present the preliminary analysis of MAGIC and Fermi-LAT data of the flaring activity in January and February 2015 for the HE (0.1 < HE < 300 GeV) and VHE band, together with radio (Metsähovi, OVRO, VLBA, Effelsberg), sub-millimeter (SMA), optical (Tuorla, Perkins, Steward, AZT-8+ST7, LX-200, Kanata), X-ray and UV (Swift-XRT and UVOT), in the same time-window and discuss the time variability of the multiwavelength light curves during this impressive outburst.engAtribución 3.0 Españahttps://creativecommons.org/licenses/by/3.0/es/journal articlehttps://doi.org/10.3390/galaxies4040069https://www.mdpi.com/2075-4434/4/4/69open accessBL Lacertae objects: individual: S5 0716+714Galaxies: activegamma-rays: galaxiesAstrofísicaAstronomía (Física)Óptica (Física)2209.19 Óptica Física