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The number of known very high energy (VHE) blazars is $\sim\,50$, which isvery small in comparison to the number of blazars detected in otherfrequencies. This situation is a handicap for population studies of blazars,which emit about half of their luminosity in the $\gamma$-ray domain. Moreover,VHE blazars, if distant, allow for the study of the environment that thehigh-energy $\gamma$-rays traverse in their path towards the Earth, like theextragalactic background light (EBL) and the intergalactic magnetic field(IGMF), and hence they have a special interest for the astrophysics community.We present the first VHE detection of 1ES\,0033+595 with a statisticalsignificance of 5.5\,$\sigma$. The VHE emission of this object is constantthroughout the MAGIC observations (2009 August and October), and can beparameterized with a power law with an integral flux above 150 GeV of$(7.1\pm1.3)\times 10^{-12} {\mathrm{ph\,cm^{-2}\,s^{-1}}}$ and a photon indexof ($3.8\pm0.7$). We model its spectral energy distribution (SED) as the resultof inverse Compton scattering of synchrotron photons. For the study of the SEDwe used simultaneous optical R-band data from the KVA telescope, archival X-raydata by \textit{Swift} as well as \textit{INTEGRAL}, and simultaneous highenergy (HE, $300$\,MeV~--~$10$\,GeV) $\gamma$-ray data from the \textit{Fermi}LAT observatory. Using the empirical approach of Prandini et al. (2010) and the\textit{Fermi}-LAT and MAGIC spectra for this object, we estimate the redshiftof this source to be $0.34\pm0.08\pm0.05$. This is a relevant result becausethis source is possibly one of the ten most distant VHE blazars known to date,and with further (simultaneous) observations could play an important role inblazar population studies, as well as future constraints on the EBL and IGMF.

Discovery of very high energy gamma-ray emission from the blazar 1ES 0033+595 by the MAGIC telescopes