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:
Johannes Hevelius Prodromus Astronomia Volume III Firmamentum Sobiescianum sive uranographia Tavola XX Centaurus et Crux. Johannes Hevelius Prodromus Astronomia volume III Firmamentum Sobiescianum sive Uranographia table XX Centaurus and Crux it Tavola XX del terzo volume Firmamentum Sobiescianum sive uranographia dell'opera