The image is a photograph of a large brown sign hanging on a white wall. The sign is rectangular in shape and has Chinese characters written on it. The text on the sign reads "What are the Twenty-eight Constellations?" and there is a circular diagram in the center of the sign. The diagram appears to be a representation of the twelve constellations, which are represented by small white dots and lines. The circles are arranged in a symmetrical pattern, with each circle representing a different constellation. The background of the image is plain white.