Official source for tracking and reporting observations of asteroids, comets, and minor planets, with tools for orbit data and discovery announcements.
Track and report asteroids and comets worldwide
The IAU Minor Planet Center is the global hub for tracking and reporting asteroids, comets, and other minor planets. Here, you can submit new observations, access up-to-date orbital data, and find official announcements about discoveries from around the world. The site is essential for astronomers and researchers interested in near-Earth objects and planetary science.
Whether you're a professional astronomer or an enthusiastic amateur, you can use the center's tools to contribute observations, confirm discoveries, and analyze orbital elements. The MPC's extensive database and electronic circulars keep you connected to the latest developments in the study of minor planets and comets.
Operated by the Smithsonian Astrophysical Observatory for the International Astronomical Union, the site also offers resources, documentation, and support for anyone involved in astrometric observations or planetary research.
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