5261

5261 is a natural number that follows 5260 and precedes 5262. In decimal notation it is written as 5261 and it is an odd integer. Numbers like 5261 are used in a wide range of mathematical and cataloging contexts, from arithmetic calculations to designation systems in science and technology.

In astronomy, 5261 Eureka is the designation of a minor planet. It has been classified as a Mars Trojan, meaning it shares Mars’s orbit around the Sun and resides near one of Mars’s stable Lagrangian points. Mars Trojans are relatively rare compared with other small-body populations, and they are studied to understand orbital dynamics and the history of the inner solar system. The name "Eureka" is a reference to the exclamation of discovery, a traditional naming choice for celestial bodies that carry the designation.

Beyond mathematics and astronomy, 5261 can appear as a catalog or model number in various databases, products, or projects, where numerical identifiers are used to organize items systematically. Its specific meaning depends on the context in which it is used, as is common with four-digit numerical designations.

See also: List of minor planets: 5001–6000; Mars Trojan.