2020-11-10, 07:15–07:30, Times in UTC
We present here the TESS network of night-sky brigthness photometers.
This network is an initiative of the STARS4ALL project, a platform
for promoting dark skies in Europe, funded by the EU.
The project involves citizens in monitoring light pollution of places
The hardware and software of the photometers are open. The data obtained
with the photometers is also open, available under a
Creative Commons license (cc-by 4.0).
We also describe the infrastructure required to gather measurements from the
photometers and to allow the citizens to inspect the data from their devices.