Full Name STELLar Activity Robotic Observatory Images Image Description Since 2006, the two 1.2m robotic telescopes in STELLA are producing high-quality data. STELLA-1 focusses on optical photometry using a 4kx4k CCD camera, FoV 22 arcmin with 21 optical filters, including H-alpha. STELLA-2 feeds a high-resolution spectrograph, R=55000, fixed format. Contact person: Thomas Granzer Location Izana Observatory, Teneriffa Country Spain URL https://stella.aip.de/ Contact E-mail stella@aip.de