Member States

ESO, the European Organisation for Astronomical Research in the Southern Hemisphere, is an inter-governmental organisation with 16 Member States*. These Member States are:

 

Country

Formally joined

Member number

Scale of contribution % (2016)

Contribution (kEUR, 2016)

More info

ESON mini-site

Local Time

Austria 2009 14 2.25 3,518 ESO & Austria Austria check local time
Belgium 1967 Founding member 2.89 4,519 Belgium check local time
Brazil Ratification pending 16

 

 
Frequently asked questions

 

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Brazil check local time
Czech Republic 2007 13 0.97 1,517
 
 
Czech Republic check local time
Denmark 1967 6 1.84 2,881 ESO & Denmark Denmark check local time
Finland 2004 11 1.38 2,153
 
 
Finland check local time
France 1964 Founding member 15.03 23,519 France check localtime
Germany 1964 Founding member 22.4 35,043 Germany check local time
Italy 1982 8 10.78 16,862
 
 
Italy check local time
Netherlands 1964 Founding member 4.85 7,581
 
 
Netherlands check local time
Poland 2015 15 3.07 4,807
 
 
Poland check local time
Portugal 2001 9 1.22 1,911 Portugal check local time
Spain 2007 12 7.15 11,190 Spain check local time
Sweden 1964 Founding member 2.87 4,489
 
 
Sweden check local time
Switzerland 1982 7 4.4 6,884
 
 
Switzerland check local time
United Kingdom 2002 10 18.9 29,569
 
 
UK check local time
  Total 156,443
 
 

* Brazil is in the process of ratifying its membership.