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The quantity of numbered minor planets is now approaching half a million. Together with this Addendum, the sixth edition of the Dictionary of Minor Planet Names, which is the IAU´s official reference for the field, now covers more than 19,000 named minor planets. In addition to being of practical value for identification purposes, the Dictionary of Minor Planet Names provides authoritative information about the basis for the rich and colorful variety of ingenious names, from heavenly goddesses to artists, from scientists to Nobel laureates, from historical or political figures to ordinary women and men, from mountains to buildings, as well as a variety of compound terms and curiosities. This Addendum to the 6th edition of the Dictionary of Minor Planet Names adds approximately 2200 entries. It also contains many corrections, revisions and updates to the entries published in earlier editions. This work is an abundant source of information for anyone interested in minor planets and who enjoys reading about the people and things minor planets commemorate.

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Foreword.- Preface.- Introduction.- Catalogue of Minor Planet Names.- and Discovery Circumstances.- Appendices.- References.- Index of Minor Planet Names.

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Dr. Lutz D. Schmadel, astronomer and computer of orbits and ephemerides of minor planets at Astronomisches Rechen-Institut, Heidelberg, has discovered more than 230 minor planets and has done great service to the community by preparing the Dictionary of Minor Planet Names (now in its 6th edition) on behalf of Commission 20 of the International Astronomical Union (IAU). As member of the IAU he is affiliated to several divisions and commissions including Division III Commission 20 (Positions & Motions of Minor Planets, Comets & Satellites), Commission 5 (Documentation & Astronomical Data), Commission 41 (History of Astronomy), as well as the Committee on Small Bodies Nomenclature (CSBN)".

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