Public domain photos

The image shows a brass astrolabe on a blue background. It is a circular object with a circular dial in the center, which is used to measure the direction of the sun. The dial is surrounded by a black border, giving it a distinct look.

The image shows a brass astrolabe on a blue background. It is a circular object with a circular dial in the center, which is used to measure the direction of the sun. The dial is surrounded by a black border, giving it a distinct look.Open in library