Second International Workshop (València): 19-22 october 1992.
The paper presented was: "A method of determination of spatial number density
of meteor showers from photography", appeared in the Congress proceedings
published by the University of València, pp.354-358.
Third International Workshop (Cuenca): 17-21 october 1994. Two papers
were presented: "Photographic analysis of the quadrantid meteor shower
in 1992", pp.591-594 in the proceedings. and " Orbital elements of three
photographic perseids", appeared in the Congress proceedings published
by the University of València, pp. 595-599.
Fourth International Workshop (Penyiscola, Castelló): october
1996. The paper presented was the data obtained in the orbit determination
of: "A -9 fireball over Spain the 11 august 1993" appeared in the Congress
proceedings published by the University of València.
VI SPANISH CONGRESS OF GEOCHEMISTRY
Josep Ma. Trigo participate in this encounter organized by
several professional institutions. The paper was presented in the Cosmochemistry
session.
Sixty Congress of Geochemistry of Spain (Soria): 18-22 september 1995.
The paper presented was: "The meteoric flux: Interplanetary matter aportation
to the Earth (in spanish)", appeared in the proceedings published by CEDEX
pp.11001-11012.
VII SPANISH CONGRESS OF GEOCHEMISTRY
Josep Ma. Trigo participate in this encounter organized by
several professional institutions.
Seventh Congress of Geochemistry of Spain (Soria): 23-26
september 1997. The paper presented was: "The comets: a analysis of their
origin and chemical composition (in spanish)", appeared in the proceedings
published by CEDEX pp.632-641.
JORNADAS ESTATALES DE ASTRONOMÍA/
SPANISH ASTRONOMICAL JOURNEYS
Josep Ma. Trigo participated in all the astronomical journeys
organized by the state astronomical associations since 1987. This section
is under construction.
VII Jornadas Estatales de Astronomía de Barcelona 1987
VIII Jornadas Estatales de Madrid: april 28th-may 1th 1989."The meteor
stream of the quadrantids: origin and evolution (in spanish)" Proceedings
edited by the Agrupación Astronómica de Madrid pp.75-84
IX Jornadas Estatales de Murcia: october 12th-14th 1990. "South Delta
Aquarids and Alpha Capricornids swarm structure"
X Jornadas Estatales de La Palma: 1992: "Structural changes in the 1988-1991
Perseids meteoroids associated to Swift-Tuttle return"
XI Jornadas Estatales de Lleida:october 29th-november 1th 1994: "Jovian
pertorbation to the Quadrantids Meteor Stream" and " Orbital calculation
of four perseids meteors photographied in 1991"
XII Jornadas Estatales de Gijón: october 10th-13th 1996: "The
amateur apportation to the study of the interplanetary matter"
JORNADAS ASTRONÓMICAS DEL "PLANETARI
DE CASTELLÓ"/ ASTRONOMICAL JOURNEYS OF THE "CASTELLÓ PLANETARIUM"
Josep Ma. Trigo organizes and takes part in the astronomical
journeys that are held at the Planetarium of Castelló since 1993.
I Jornadas Astronómicas sobre Materia Interplanetaria, April 1993.
"Photographic determination of the spatial density of meteor streams (in
spanish)" Proceedings edited by the Castelló Planetarium pages 40-60
II Jornadas Astronómicas sobre El Sistema Solar, April 1994.
"Aplication of the meteor photography in the study of the Solar System
dynamic (in spanish)" . Proceedings edited by the Castelló Planetarium
pages 64-73
III Jornadas Astronómicas sobre El Sistema Solar, April 1995.
"Spanish Photographic Meteor Network for the determination of meteoroids
orbits (in spanish)" Proceedings edited by the Castelló Planetarium
pages 104-118
IV Jornadas Astronómicas sobre El Sistema Solar, April 1996. "Photometry
of comets and the Beyer method: progress and restrictions (in Spanish)"
Proceedings edited by the Castelló Planetarium pages 41-54
The astronomical observatory is a project of Josep Trigo,
Helena Valero and Bertus van Gemeren