Browse the Unified Astronomy Thesaurus

Currently there are three ways to explore the UAT online; a hierarchical browse, an alphabetical browse, and a visual dendrogram.

Browse Alphabetically: Scroll through an alphabetical list of terms in the UAT. Clicking on a specific term will bring up information, such as it’s broader, narrower, and related terms.

Browse the Hierarchy: This shows the thesaurus terms in context, and also lets you click in to see details on each term, such as scope notes and synonyms.

Explore the Dendrogram: The relationships between words in the UAT are laid out in an easy to see manner.  Clicking a term will either expand or collapse its child terms.


Download the Unified Astronomy Thesaurus

UAT hierarchy as an Excel spreadsheet.

UAT in SKOS format as an RDF file.

An incomplete comparison of the UAT with SPIE and IVOAT in an Excel spreadsheet.

These files are also all available at our depository on The CfA Dataverse.

The UAT GitHub Repository includes scripts and files used to create the various browsers, as well as the full thesaurus in several formats.