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.
ARAGO Francois Astronomie Populaire djvu Fig. fr Fig Gnomon Extrait de Astronomie populaire Tome de Franois ARAGO sur Creator Franois Arago PDold Uploaded with Illustrations for Arago's Astronomie populaire
Page 2023 Free-images.com. All images are Public Domain