The image is a photograph of a page from a book titled "The Starry Sky of the Han Dynasty". The page is written in black text on a beige background. The title of the book is written at the top of the page in Chinese characters. Below the title, there is a subtitle in English that reads "In 1977, more than 390 pieces of relics were unearthed from the tomb of Xi'an Zhao (2-169BCE), Marquis of Ruiyin, near the Western Han Dynasty (2068BCE) in North Anhui province. Among them are two astronomical instruments of very high importance, namely, the earliest Gnomon with Shadow Scale ever seen in China and the Disks with 28 Lunar Lodges, a precursor of the Chinese armillary sphere. He and Liu An (179 BCE) were keen on astronomy. King of the neighboring Huainan, another major patron of the astronomy in the period and the chief author of the peerless masterpiece in philosophy. Master of Huainainan made the area an important center for the study of astronomy."