XML Catalogs
Guide Star Catalog
Standard Catalog of World Paper Money
Microsoft Update Catalog
USNO CCD Astrograph Catalog
World Spider Catalog
Whole Earth Catalog
Satellite Catalog Number
Washington Double Star Catalog
BMEcat
The Amateur Sky Survey
Kepler Input Catalog
Open Catalog Interface
Library of Congress Control Number
Bright-Star-Katalog
Abell Catalog of Planetary Nebulae
Liste astronomischer Kataloge
Machine-Readable Cataloging
Sony Music Entertainment
Interaktiver Ersatzteilkatalog
Extrasolar Planets Encyclopaedia