Minor Planet Circulars

Not to be confused with The Minor Planet Bulletin, published by the Association of Lunar and Planetary Observers.

Minor Planet Circulars (MPCs), established 1947, is a scientific journal that is generally published on the date of each full moon by the Minor Planet Center. The Circulars contain astrometric observations, orbits and ephemerides of minor planets, comets and certain natural satellites. The astrometric observations of comets are published in full, while the minor planet observations are summarised by observatory code (the full observations now being given in the Minor Planet Circulars Supplement). New numberings and namings of minor planets, as well as numberings of periodic comets, are announced in the Circulars. New orbits for comets and natural satellites appear in the Circulars; new orbits for minor planets appear in the Minor Planets and Comets Orbit Supplement.

See also

• Minor Planet Electronic Circular
• IAU Circular
• Electronic Telegram of the Central Bureau for Astronomical Telegrams

External links

• MPC, MPO and MPS circulars