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.
Trouvelot Solar protuberances . Solar protuberances Observed on May at Plate II from The Trouvelot Astronomical Drawings nypl org TROUVELOT Creator tienne Lopold Trouvelot The Trouvelot Astronomical Drawings Prominence PDold
Page 2023 Free-images.com. All images are Public Domain