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Image Astro du jour
As the Sun sets, a telescope opens its eye, preparing to peer beyond its shiny dome into the sky above. Today’s Picture of the Week was taken at La Silla, ESO’s first observatory, located near the outskirts of Chile’s Atacama Desert at 2400 metres above sea level. It features the MPG/ESO 2.2-metre telescope — originally constructed by the Max Planck Institute for Astronomy and installed by ESO at La Silla Observatory — which has been observing the cosmos since 1983.
Though the 2.2-metre is small by today’s standards, it still does a lot of excellent work. The telescope hosts three instruments: a camera to pinpoint the location of gamma-ray bursts (the most energetic explosions in the Universe), a spectrograph that studies stars in detail, and a Wide Field Imager (WFI) to capture stunning images of celestial objects. The WFI, in particular, has produced dramatic visuals of colourful nebulae as well as inky black dust clouds hosting early star formation.
Since 2013 the 2.2-metre telescope has been solely used by the Max Planck Society plus Chilean astronomers. With its long-standing presence and distinctive silver dome, it still holds a special place in the hearts of many ESO astronomers, including the photographer Luca Sbordone: “I saw it first when I was an ESO student and spent a few weeks in La Silla and has been dear to me ever since.”