Observing the Southern Hemisphere’s Stars

The Atacama Desert starts around 500km north of Santiago.  Because of the low population, low light pollution, high mountain peaks and very low atmospheric moisture, it is an ideal location for optical telescopes.  We were lucky enough to visit two – the Gemini telescope operated by Noirlab and El Silla operated by the European Southern Observatory.  These were daytime technical visits to the telescopes and their supporting infrastructure (rather than nocturnal observational visits).   We learnt that nowadays only the technicians and maintenance crews reside at the observatories. The astronomers work remotely at control centres located in the larger towns, thanks to data connections to/from the telescopes.

We were able to camp at both sites and Dave again tried some astrophotography with his phone in the ideal conditions. As we progress further into the Atacama Desert, Dave is hoping that the photos get better and better.

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