The Minor Planet Circulars (MPCs) 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.
Famous quotes containing the words minor, planet and/or circular:
“A certain minor light may still
Leap incandescent
Out of kitchen table or chair
As if a celestial burning took
Possession of the most obtuse objects now and then—”
—Sylvia Plath (1932–1963)
“I have always believed that opera is a planet where the muses work together, join hands and celebrate all the arts.”
—Franco Zeffirelli (b. 1922)
“Whoso desireth to know what will be hereafter, let him think of what is past, for the world hath ever been in a circular revolution; whatsoever is now, was heretofore; and things past or present, are no other than such as shall be again: Redit orbis in orbem.”
—Sir Walter Raleigh (1552–1618)