Annibale de Gasparis, an astronomer renowned for his work in celestial observations, made an important discovery with asteroid 15 Eunomia. He conducted his observations at the Capodimonte Observatory in Naples, Italy, where he meticulously examined the celestial sphere. After careful observation, he identified a new object which was confirmed to be an asteroid, later designated as 15 Eunomia. The naming of the asteroid honored the Greek goddess Eunomia, who symbolizes law and order, reflecting the astronomer's intention to signify the importance of structure within the realm of celestial bodies. Eunomia is notable for being one of the largest asteroids, with a diameter of approximately 255 kilometers, making it a significant object in the asteroid belt between Mars and Jupiter.

De Gasparis's discovery added to the growing catalog of asteroids being identified during the 19th century, a period that witnessed a surge in interest in planetary science. The mid-1800s saw astronomers beginning to realize the importance of studying asteroids, leading to enhanced understanding of their composition and orbits. In addition to Eunomia, De Gasparis also contributed to the discovery of several other asteroids, boosting Italy's standing in the realm of astronomical research. His work laid groundwork for future studies that would enhance our understanding of these celestial objects and their role in the solar system. This era of exploration was marked by advancements in observational techniques, grand discoveries, and astronomical collaboration.