Introduction

Abstract

The introduction to previous editions of the “Dictionary” started with statements deeply influenced by the breathtaking evolution of minor planet astronomy during the last decade. These sentences, characterized by a tone of disbelief and astonishment about the explosive dynamism of this field, hold more today than ever: “In a period when discoveries flourish, more and more minor planets are being discovered; it is inevitable that this dictionary can be no more than an inventory of the situation at this moment. A compilation of this nature is by definition bound to be out of date before it appears in print. There are, however, two reasons that justify this effort. After having named more than 16,000 minor planets, a historic goal was achieved. It seems reasonable to avail ourselves of this opportunity to summarize an interesting aspect of this narrow branch of astronomy during the past two centuries. The second reason is a purely technical one: we now are forced for the first time to handle the enormous amount of minor-planet data in two volumes.” The actual dimensions, however, assumed horrendous proportions. Triggered by gigantically successful automated CCD surveys and the establishment of even more powerful computing facilities combined with the dedication of their users, the situation changed dramatically anew. The use of the term “historic,” therefore, should be reconsidered.