A number of links to astronomical sites that I find useful, and maybe other people too...

Telescopes and observatories

X-ray and UV

        Chandra X-ray Observatory

        Galaxy Evolution Explorer (GALEX)


Optical and NIR

        Calar Alto Astronomical Observatory (CAHA)

        Canada-French-Hawaii Telescope (CFHT)

        Cerro Tololo Inter-American Observatory (CTIO)

        European Southern Observatory (ESO)

        Gemini Observatory

        Hubble Space Telescope (HST)

        Isaac Newton Group of Telescopes (ING)

        James Webb Space Telescope (JWST)

        Keck Observatory

        Kitt Peak National Observatory (KPNO)

        Nordic Optical Telescope (NOT)

        Special Astrophysical Observatory (SAO)

        Subaru Telescope

        Telescopio Nazionale Galilei (TNG)


        Herschel Space Observatory

        Spitzer Space Telescope

        Stratospheric Observatory for Infrared Astronomy (SOFIA)

        Wide-field Infrared Survey Explorer (WISE)


        Atacama Large Millimeter Array (ALMA)

        Atacama Pathfinder Experiment (APEX)

        Atacama Submillimeter Telescope Experiment (ASTE)

        Australia Telescope National Facility (ATNF)

        Caltech Submillimeter Observatory (CSO)

        Giant Metrewave Radio Telescope (GMRT)

        Green Bank Observatory (GBT)

        Institut de Radioastronomie Millimétrique (IRAM)

        James Clerk Maxwell Telescope (JCMT)

        Large Millimeter Telescope (LMT)

        Nobeyama Radio Observatory (NRO)

        Very Large Array (VLA)