This is an antique star chart depicting the constellation Leo (The Lion). The chart is rendered in a vintage, engraved style, with a sepia tone. The central image is a detailed illustration of a lion, depicted in a dynamic pose as if striding forward. The lion has a full mane and is rendered with intricate linework, showing muscle definition and fur texture. A bold line traces the outline of the constellation, connecting the stars that form the lion's shape. Surrounding the lion are numerous small stars, represented as dots of varying sizes. These stars are scattered across the chart, forming the backdrop of the constellation. Lines connect the stars, delineating the boundaries of the constellation and its various components. Around the central image are labels in French, identifying neighboring constellations such as 'la Chevelure de Berenice' (Berenice's Hair), 'le Cancer' (Cancer), 'la Vierge' (Virgo), 'l'Hydre' (Hydra), 'le Sextans' (Sextans), and 'la Coupe' (Cup). The chart is overlaid with a grid of coordinates, marked with Roman numerals and numbers along the edges, providing a system for locating stars and constellations. The overall impression is one of scientific accuracy combined with artistic detail, typical of historical astronomical charts.