Kiepenheuer Institute for Solar Physics

The Kiepenheuer Institute for Solar Physics (KIS) conducts experimental and theoretical investigations of physical processes on and within the Sun. Its headquarter is in Freiburg, Germany. The KIS operates the german solar telescopes at Teide Observatory on Tenerife (Spain) where most of the scientific observations are performed. KIS offers lectures on astronomy and astrophysics at Freiburg university and trains young scientists.

Picture of the Month

Movies of solar granulation frequently show bright granules that expand rapidly and reach sizes larger than an average granule. 


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The data archive of the GREGOR infrared spectrograph (GRIS, Collados et al. 2012, AN 333, 872) is online now. GRIS data prior to 2017 is open access and now available through the GRIS data archive. It contains more than 500 data sets recorded in the years between 2014 and 2016. Most of them are single raster scans recorded in spectropolarimetric mode in the 1.08µm and 1.56µm wavelength bands. Some of them are measurements in spectroscopic mode, time sequences capturing the evolution of solar features, and observation in other wavelength bands such as 2.2µm.

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