Overview

• A Southwest Research Institute team identified the object, provisionally designated S/2025 U1, in ten 40-minute NIRCam images taken on Feb. 2, 2025.
• The moon orbits about 35,000 miles (56,300 km) from Uranus' center between Ophelia and Bianca at the edge of the inner rings.
• Its nearly circular path suggests formation near its present location within the planet's inner satellite system.
• At roughly 6 miles (10 km) across, it is too small and faint for Voyager 2 or earlier telescopes to have detected.
• The discovery raises Uranus' known moons to 29 and strengthens expectations that more tiny satellites remain undiscovered.