Astro-Observatories

US

Lowell Observatory

Palomar Observatory

WM Keck Observatory

Arecibo Observatory

The National radio Astronomy Observatory in Green Bank

McDonald Observatory(Texas Univ.)

Italy

INAF Osservatorio Astronomico di Roma

Observaorio de Calar Alto

Spain

Roque de los Muchachos(Canary)

Germany

Hamburger Sternwarte

Potsdam-Insitute fuer Klimafolgenforschung

Austria

Johanes Kepler Sternwarte

Chili

ALMA

Japan

Nobeyama