475221

475221 is a numeric designation used in several cataloging systems. In astronomy, it is the designation of a minor planet assigned by the Minor Planet Center. Once a minor planet's orbit is well determined, it receives a number; 475221 indicates it was the 475,221st object to be numbered. Such objects may later receive a name, but many remain unnamed.

Beyond astronomy, the sequence 475221 may function as a postal code, inventory or catalog number, or an identifier in a database. For example, six-digit postal codes are used in some countries; 475221 could correspond to a specific geographic area in a national postal system. In libraries or museums, numbers of this length are commonly used in accession numbers or catalog records, though the exact meaning would depend on the institution's scheme.

Because it is a generic numeric label, the precise meaning of 475221 depends on the context in which it is used.