RT Conference Proceedings T1 Physico-chemical properties of 109/Swift -Tuttle debris A1 Ocaña Gónzalez, Francisco A1 Madiedo Gil, José María A1 Trigo Rodríguez, Josep María A1 Zamorano, J. A1 Izquierdo Gómez, Jaime A1 Sánchez de Miguel, A. AB Dust ejecta of comet 109P/Swift-Tuttle produces one of the most relevant annual meteorshowers: the Perseids (PER). This display of meteorsis active between July 17 and August 24, peaking onAugust 12 [1]. As a result of good weather conditionsthat generally predominate in most of Spain duringsummer time, the video observing stations operated bythe SPanish Meteor Network (SPMN) have registereda huge amount of multi-station meteor and fireballsevents since they started operation in 2006. As a resultof our continuous spectroscopic campaign, emissionspectra of Perseids brighter than mag. -4/-5 have alsobeen recorded. As an example, we present here a preliminaryanalysis of some relevant multi-station PERfireball events recorded during 2011 and 2012. YR 2013 FD 2013 LK http://hdl.handle.net/10272/9358 UL http://hdl.handle.net/10272/9358 LA eng NO Ocaña 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) DS Repositorio Institucional de la Universidad de Huelva RD 31 may 2026