Acknowledgments

	Comenius This project has been funded with support from the European Commission, grant 510308-LLP-1-2010-1-FR-COMENIUS-CMP. This Web site reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.
	Comenius This project has been funded with support from the European Commission, grant 141928-2008-LLP-FR-COMENIUS-CMP. This Web sitereflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.
	Socrates This project has been funded with support from the European Commission, grant 13969-CP-1-2004-1-FR-MINERVA-M. This Web site reflects the views only of the authors, and the Commission cannot be held responsible for any use which may be made of the information contained therein.
	ESA ESA contributed to the development of the SalsaJ (EU-HOU) software in 2005.
	LUNAP LUNAP (Sciences à l'Ecole, France) contributes to the development of the SalsaJ (EUHOU) software and to the funding of the EUHOU Web server in 2006-2007.
	UPMC Univ. Pierre & Marie Curie (France) has coordinated the three projects.
	OBSERVATOIRE ROYAL DE BELGIQUE / PLANETARIUM DE BRUXELLES Observatoire royal de Belgique - Planétarium de Bruxelles (Belgium) was a partner of the two Comenius projects.
	UCM Universidad Complutense de Madrid (Spain) was a partner of the three projects.
	LYKEIO AGIOU NIKOLAOU Lykeio Agiou Nikolaou (Cyprus) was a partner of the two Comenius projects.
	PHILEKPAIDEFTIKI ETAIREIA Philekpaideftiki Etaireia (Greece) was a partner of the first project (MINERVA).
	NATIONAL OBSERVATORY OF ATHENS National Observatory of Athens (Greece) was a partner of the two Comenius projects.
	IDIS Fondazione IDIS - Città della Scienza onlus was a partner of the first two projects (MINERVA & Comenius).
	CFT Centrum Fizyki Teoretycznej Polskiej Akademii Nauk (Poland) was a partner of the first project (MINERVA).
	NICOLAUS COPERNICUS UNIVERSITY Nicolaus Copernicus University (Poland) was a partner of the first Comenius project.
	JAGIELLONIAN UNIVERSITY IN KRAKOW Jagiellonian University in Krakow (Poland) was partner of the second Comenius project.
	NUCLIO NUCLIO Núcleo Interactivo de Astronomiak (Portugal) was a partner of the three projects.
	Chalmers Chalmers Tekniska Högskola (Sweden) was a partner of the first project (MINERVA)
	VETENSKAPENS HUS/HOUSE OF SCIENCE Vetenskapens Hus/ House of Science (Sweden) was a partner of the two Comenius projects.
	UNIVERSITATEA DIN CRAIOVA Universitatea din Craiova (Romania) was a partner of the two Comenius projects.
	Armagh Armagh Planetarium (UK) was a partner of the first project (MINERVA).
	UNIVERSITY OF GLAMORGAN University of Glamorgan (UK) was a partner of the first Comenius project.
	CARDIFF UNIVERSITY Cardiff University (UK) was a partner of the second Comenius project.