This vocabulary is published by the Virtual Astronomy
Multimedia Project to allow images to be
tagged with keywords that are relevant for the public. It consists of
a set of keywords organised into an enumerated hierarchical structure.
Each term consists of a taxonomic number and a label. There are no
definitions, scope notes, or cross references.
For further information, see the
specification at http://www.virtualastronomy.org, in particular the
reference document http://www.virtualastronomy.org/AVM_Version1.1May312008.pdf