This image was acquired from
flickr. 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:
andromeda astrophotography deep sky deepsky black background texture aurora outdoor took time this year to reprocess capture I've made last year using new software and was finally able to bring out the details of the great Andromeda galaxy. pity that forgot to take some flat frames so little vignetting and dust marks are visible but