Visitors during the Open Days 2019 to the Teide Observatory. Credit: IAC. Download Visitors during the Open Days 2019 to the Teide Observatory. Credit: IAC. Created at 06/14/2019 Authors Miquel Serra Ricart Instituto de Astrofísica de Canarias (IAC) Credits Instituto de Astrofísica de Canarias (IAC) Obtained at Teide Observatory In the media Installation GREGOR Solar Telescope Headquarter Teide Observatory Description Visitors during the Open Days 2019 to the Teide Observatory. In the background, GREGOR solar telescope and the outreach dome. Credit: IAC. Type: image Outreach