Ocaña Gónzalez, FranciscoMadiedo Gil, José MaríaTrigo Rodríguez, Josep MaríaZamorano, J.Izquierdo Gómez, JaimeSánchez de Miguel, A.2014-11-192014-11-192013Ocaña Gónzalez, F., Madiedo Gil, J.M., Trigo Rodríguez, J.M., Zamorano, J., Izquierdo Gómez, J., Sánchez de Miguel, A.: "Physico-chemical properties of 109/Swift -Tuttle debris". En: 44th Lunar and Planetary Science Conference (The Woolands, Texas, march 18-22, 2013)http://hdl.handle.net/10272/9358Dust ejecta of comet 109P/Swift- Tuttle produces one of the most relevant annual meteor showers: the Perseids (PER). This display of meteors is active between July 17 and August 24, peaking on August 12 [1]. As a result of good weather conditions that generally predominate in most of Spain during summer time, the video observing stations operated by the SPanish Meteor Network (SPMN) have registered a huge amount of multi-station meteor and fireballs events since they started operation in 2006. As a result of our continuous spectroscopic campaign, emission spectra of Perseids brighter than mag. -4/-5 have also been recorded. As an example, we present here a preliminary analysis of some relevant multi-station PER fireball events recorded during 2011 and 2012.engAtribución-NoComercial-SinDerivadas 3.0 Españahttp://creativecommons.org/licenses/by-nc-nd/3.0/es/conference outputopen access