FRAME captures Milky Way by Finnish astrophotographer J-P Metsavainio, a 1.7-gigapixel mosaic of the plane of the Milky Way galaxy. It took twelve years in order to complete the mosaic and each tile was a work by itself. The total exposure time between 2009 and 2021 is around 1,250 hours (you can download here the full image of 11.5 MB).
J-P Metsavainio, Milky Way, 2009 – 2021, image via