Though it looks like a planetary body in space, this is actually a photo of an old magnifying glass. It’s a Sherlock Holmes kind of lens, with a handle and a brass ring around the glass.
The lens was held at a certain angle in a dark room, with a just a little sunlight shining through a small opening in my window curtains. The side-lighting produced some glare, while highlighting the dust and imperfections in the glass. Though the handle is lost in the dark, you can see and identify a portion of the brass ring at lower left.