Herschel (Uranus) & Leverrier (Neptune) from Smith's Illustrated Astronomy

This chart, titled Herschel (Uranus) & Leverrier (Neptune), is part of Smith's Illustrated Astronomy, an influential educational text designed for public and common schools in the United States. Created by Asa Smith, Principal of Public School No. 12 in New York City, the work aimed to simplify the complexities of astronomy for young learners. Smith stated his goal as “to present all distinguishing principles in physical Astronomy with as few words as possible; but with such ocular demonstrations, by way of diagrams and maps, as shall make the subject easily understood.”

The chart provides visual representations of the seventh and eighth planets in the solar system. Uranus, referred to as "Herschel" in honor of its discoverer William Herschel, and Neptune, credited to the calculations of Urbain Le Verrier, are depicted with accompanying details about their orbits and distinguishing characteristics. By including these recently discovered planets, the chart underscores the rapid advancements in astronomical knowledge during the 19th century and reflects Smith's commitment to presenting the latest scientific discoveries in an accessible format.