Key speakers

Thomas Posch

Born in Graz, Austria

1992–2002: Master Studies of Astronomy, Physics, Mathematics and Philosophy at the Universities of Graz, Berlin and Vienna 2002–2005: PhD Studies at Vienna and Jena 2005: PhD in astronomy (thesis on IR spectra of red giant stars) 2005 und 2006: Guest Scientist at the University of Jena and at the Max-Planck-Institute for Astronomy in Heidelberg Since 2006: Senior scientist at the University of Vienna, Department of Astrophysics 2011: Habilitation in astronomy 2014: "Galileo Award" from the International Dark Sky Association

Salvador Bara
Zoltan Kollath
Fabio Falchi

Fabio Falchi, physicist, works on light pollution for more than 20 years now. He is one of the authors of the First Atlas of Artificial Night Sky Brightness, published in 2001 on the Monthly Notices of the Royal Astronomical Society, and leaded the group of scientists that produced the New World Atlas, published on Science Advances by the American Association for the Advancement of Science.

PhD in Optics (1989), Profesor Titular of the Optics Area at the faculties of Physics, and Optics and Optometry, of the Universidade de Santiago de Compostela (Galicia, Spain). Working in models and instrumentation for light pollution assessment, including human-related effects, long-term monitoring of the night sky brightness, and hyperspectral imaging of pollutant sources. More info at 


Zoltán Kolláth is a professor of physics at the University of West Hungary, Savaria Campus. He received his PhD (1990) in astrophysics and the Doctor of the Hungarian Academy of Sciences (Dsc) degree in 2003. He has been working in stellar astrophysics, numerical modeling of pulsating stars and nonlinear data processing. He has been involved in light pollution related studies for more than 10 years and now leads a special program in the doctoral school of the university focusing on measurements and modeling of light pollution.

Hector Solano
Salvador Ribas

Hector Solano is currently a Researcher of atmospheric sciences at the CentroMet. He earned his PhD and MSc on Environmental Engineering from the Polytechnic University of Catalonia, and a MSc on manufacturing from the ITCJ. He belongs to the National System of Researchers of Mexico. From January 2012 until December 2015, he was a postdoctoral research fellow at the Slovak Academy of Sciences. He focuses on light pollution studies, including topics as night sky brightness, luminous environmental impact, legislation, development of technologies for skyglow measurement, among others. In this context, he has a constant collaboration with research groups in Slovakia and Spain. He also examines the relationship between science and art with a project to convert skyglow data into experimental music.

Scientific Manager of Parc Astronomic Montsec and Assistant Lecturer of the Astrophysics area of the Universitat de Barcelona. PhD on Light Pollution (2016) based on studies in protected and urban areas of Catalonia. Working in measuring and monitoring light pollution. Working in site testing and evaluation of dark sky places for certifications as Starlight or IDA. Also working in outreach, education and communication in Parc Astronomic Montsec. More info through Parc Astronomic website: www.parcastronomic.cat