100 Hours of Astronomy

Further Information

You can download the preliminary Webcast Schedule as PDF.

Around the World in 80 Telescopes

"Around the World in 80 Telescopes" was a unique live 24-hour webcast organised by ESO for the 100 Hours of Astronomy Project. The webcasts were broadcast live on 3 – 4 April 2009.

ESO recorded webcasts:


"100 Hours of Astronomy" was one of the Cornerstone Projects of the International Year of Astronomy 2009. Other than the webcasts, the rest of this IYA2009 project is no longer available for viewing. However, the global astronomy community Astronomers Without Borders, which was responsible for the coordination, continues some of the work.


Archive with other recorded videos

Start Time (UT) Observatory Recorded Videos
03 April 09:00 Gemini North telescope (Hawaii, USA) Watch
03 April 09:20 Subaru Telescope, National Astronomical Observatory of Japan (NAOJ) (Hawaii, USA) Watch
03 April 09:40 United Kingdom Infrared Telescope (UKIRT) (Hawaii, USA) Watch
03 April 10:00 W. M. Keck Observatory (Hawaii, USA) Watch
03 April 10:20 James Clerk Maxwell Telescope (JCMT) (Hawaii, USA) Watch
03 April 10:40 Canada-France-Hawaii Telescope (CFHT) (Hawaii, USA) Watch
03 April 11:00 Submillimeter Array (Hawaii, USA) Watch
03 April 11:20 Caltech Submillimeter Observatory (CSO) (Hawaii, USA) Watch
03 April 11:40 MOA Telescope (New Zealand) Watch
03 April 12:00 Anglo-Australian Telescope (AAT) (Australia) Watch
03 April 12:20 GEO600, the German-British Gravitational Wave Detector (Germany) Watch
03 April 12:40 NAOJ Nobeyama, Nobeyama Radio Observatory (NRO) (Japan) Watch
03 April 13:00 Gunma Astronomical Observatory (Japan) Watch
03 April 13:20 Okayama Astrophysical Observatory (OAO) (Japan) Watch
03 April 13:40 Themis (Observatorio del Teide) (Spain) Watch
03 April 13:50 SolarLab (Observatorio del Teide) (Spain) Watch
03 April 14:00 Quijote (Observatorio del Teide) (Spain) Watch
03 April 14:10 ESA's XMM-Newton X-ray observatory & INTEGRAL gamma-ray observatory (Space) Watch
03 April 14:40 Atacama Pathfinder Experiment (APEX) (Chile) Watch
03 April 15:00 Atacama Large Millimeter/submillimeter Array (ALMA) (Chile) Watch
03 April 15:20 European VLBI Network (EVN) (Netherlands) Watch
03 April 15:40 ASTRON Westerbork Synthesis Radio Telescope (WSRT) (Netherlands) Watch
03 April 16:00 LOFAR, the LOW Frequency Array of ASTRON (Netherlands) Watch
03 April 16:20 Virgo Gravitational Wave Detector at the European Gravitational Observatory (Italy) Watch
03 April 16:40 Plateau de Bure Interferometer (France) Watch
03 April 17:00 The University of Manchester's Jodrell Bank Observatory (United Kingdom) Watch
03 April 17:20 The NASA/ESA Hubble Space Telescope (Space) Watch
03 April 17:40 The Swift Gamma Ray Burst Explorer (Space) Watch
03 April 18:00 The Fermi Gamma-ray Space Telescope (Space) Watch
03 April 18:20 The Very Large Array (VLA) (USA) Watch
03 April 18:40 Himalayan Chandra Telescope (Indian Astronomical Observatory, Hanle) (India) Watch
03 April 19:00 The Robert C. Byrd Green Bank Telescope (USA) Watch
03 April 19:20 SOHO (Solar and Heliospheric Observatory) and TRACE (Transition Region and Coronal Explorer) (Space) Watch
03 April 19:40 STEREO (Solar TErrestrial RElations Observatory) (Space) Watch
03 April 20:00 Laser Interferometer Gravitational-Wave Observatory (LIGO) (USA) Watch
03 April 20:20 Galaxy Evolution Explorer (GALEX) (Space) Watch
03 April 20:40 NASA's Chandra X-ray Observatory (Space) Watch
03 April 21:00 The Southern African Large Telescope (SALT) (South Africa) Watch
03 April 21:20 NASA's Spitzer Space Telescope (Space) Watch
03 April 21:40 Observatoire de Haute-Provence (France) Watch
03 April 22:00 Calar Alto Observatory (Centro Astronómico Hispano Alemán) (Spain) Watch
03 April 22:20 IRAM 30-metre telescope (Spain) Watch
03 April 22:40 Hinode (SOLAR-B) (Space) Watch
03 April 23:00 Gran Telescopio Canarias (Observatorio del Roque de los Muchachos, La Palma) (Spain) Watch
03 April 23:10 William Herschel Telescope (Observatorio del Roque de los Muchachos, La Palma) (Spain) Watch
03 April 23:20 Telescopio Nazionale Galileo (Observatorio del Roque de los Muchachos, La Palma) (Spain) Watch
03 April 23:30 Swedish Solar Telescope (Observatorio del Roque de los Muchachos, La Palma) (Spain) Watch
03 April 23:40 Allen Telescope Array (USA) Watch
04 April 00:00 Telescope Bernard Lyot (TBL), Pic du Midi (France) Watch
04 April 00:20 CSIRO Australia Telescope National Facility - Parkes Observatory (Australia) Watch
04 April 00:40 Space Sciences Laboratory - UC Berkeley (Space) Watch
04 April 01:00 University of Tasmania Hobart 26m Radiotelescope (Mount Pleasant Observatory) (Australia) Watch
04 April 01:20 Australian International Gravitational Wave Observatory (AIGO) Research Facility (Australia) Watch
04 April 01:40 Shanghai Radio Telescope (Shanghai Astronomical Observatory) (China) Watch
04 April 02:00 Arecibo Observatory (Puerto Rico) Watch
04 April 02:20 ESO Very Large Telescope (VLT) (Chile) Watch
04 April 02:40 Concordia station, Dome C, Antarctica (Antarctica) Watch
04 April 03:00 Las Campanas Observatory (Chile) Watch
04 April 03:20 ESO La Silla Observatory (Chile) Watch
04 April 03:40 Rothney Astrophysical Observatory (Canada) Watch
04 April 04:00 Gemini South telescope (Chile) Watch
04 April 04:20 NOAO South - Cerro Tololo Inter-American Observatory (Chile) Watch
04 April 04:40 Molonglo Observatory Synthesis Telescope (Australia) Watch
04 April 05:00 McDonald Observatory (Hobby-Eberly Telescope) (USA) Watch
04 April 05:20 Apache Point Observatory ARC 3.5-meter Telescope (USA) Watch
04 April 05:40 Large Binocular Telescope Observatory (USA) Watch
04 April 06:00 TAMA 300 (Japan) Watch
04 April 06:20 Arizona Radio Observatory's Submillimeter Telescope, Mt Graham (USA) Watch
04 April 06:35 Vatican Telescope, Mt Graham (USA) Watch
04 April 06:50 MMT Observatory (USA) Watch
04 April 07:05 Kepler Mission (Space) Watch
04 April 07:25 The 10-meter South Pole Telescope/IceCube Neutrino Telescope (South Pole, Antarctica) Watch
04 April 07:40 Kitt Peak National Observatory (USA) Watch
04 April 08:00 Lick Observatory (USA) Watch
04 April 08:20 CHARA (Mount Wilson) (USA) Watch
04 April 08:40 Shanghai Radio Telescope (Shanghai Astronomical Observatory) (China) Watch
04 April 09:00 Palomar Observatory / Hale Telescope (USA) Watch