This image was acquired from
wikimedia. It was marked as Public Domain or CC0 and is free to use. To verify, go to the source and check the information there.
Keywords from Image Description:
AndersCelsius.jpeg oil langswitch astronomical observatory of Uppsala University astronomisches Observatorium der Universitt Uppsala l'observatoire astronomique de l'universit d'Uppsala observatorio astronmico de la Universidad de Uppsala kp eredetije az uppsalai egyetem csillagvizsgljban van astronoomsche Observatorium bi de Universitt