It took over a decade and 1,000 hours of photography to create this picture of the Milky Way
Finnish astrophotographer, JP Metsavainio, took on the daunting task of creating a mosaic of the Milky Way back in 2009. It took him twelve years to get the whole picture which is around 100,000 pixels wide and has 234 individual mosaic panels stitched together.
Full res image here (after opening, click to enlarge):
https://1.bp.blogspot.com/-TqRxEAjrDYI/YFCLF-H8K3I/AAAAAAAAS-E/rj_avOwDgw0TP66RQURSDcDIOPPxJIscgCLcBGAsYHQ/s7023/000-GrandeMosaic120DegreesLONG.jpg
More:
https://www.businessinsider.in/science/space/news/finnish-photographer-jp-metsavainio-took-over-a-decade-and-1000-hours-of-photography-to-create-this-picture-of-the-milky-way-and-20-million-stars/slidelist/81563516.cms