50781

50781 is a designation that can refer to several distinct entities depending on context, primarily within astronomy and space exploration. Most notably, it is the catalog number assigned to the asteroid **2001 QJ9**, an object in the main asteroid belt located between Mars and Jupiter. Discovered on August 16, 2001, by astronomers at the Lincoln Near-Earth Asteroid Research (LINEAR) program, this asteroid belongs to the Flora family, a group of stony asteroids named after 8 Flora, the largest member. Its orbit is relatively stable, with a diameter estimated to be around 1.5 kilometers. The designation "50781" is part of the Minor Planet Center’s numbering system, which sequentially assigns identifiers to newly discovered asteroids.

In other contexts, "50781" may appear in military or administrative numbering systems, such as aircraft or vehicle serial numbers, though no widely documented public records confirm its use in these domains. The number is also occasionally referenced in pop culture or as a placeholder in technical documentation, but without a specific, verifiable association. For astronomers and space enthusiasts, 50781 remains primarily significant as the identifier for asteroid 2001 QJ9, contributing to ongoing studies of the asteroid belt’s composition and dynamics.