Keywords: Al Sufi - Book of Fixed Stars - Ursa Major (The Great Bear) - Bodleian Library - Marsh 144.jpg The Great Bear as depicted in Al Sufi's c 964 Book of Fixed Stars The familiar seven stars of the Big Dipper recorded by Ptolemy are visible in the rump and tail but notice they occur as a mirror-image of what we actually see because Al Sufi provided two images of each constellation one as we see it in the night sky and one as seen here on a celestial globe The image is from the c 1009 copy in the Bodleian Library the oldest copy extant 2014-10-16 15 05 23 http //bodley30 bodley ox ac uk 8180/luna/servlet/detail/ODLodl~23~23~123247~142399 qvq q marsh+144;sort Shelfmark sort_order;lc ODLodl~23~23 mi 52 trs 435 Bodeian Library Creator Abd al-Rahman al-Sufi other versions facing page with mirror-reversed diagram PD-old-70-1923 Uploaded with UploadWizard Kitāb Ṣuwar al-kawākib al-thābitah Ursa Major Files from the Bodleian Libraries Islamic constellation maps |