IRAS Small Scale Structure Catalog

The Small-Scale Structure (SSS) Catalog, also known as the catalog of "small extended sources," contains sources resolved by the IRAS in any band (12, 25, 60, or 100 microns) but smaller than 8' in angular extent. These non-pointlike sources are nevertheless discrete, and this catalog complements the Point Source Catalog, and the atlases of extended emission, e.g., the ISSA plates. The SSS Catalog gives the infrared characteristics of 16,740 objects including galaxies, planetary nebulae, and compact H II regions.

This dataset or service is made available by the Infrared Science Archive (IRSA) at IPAC, which is operated by the California Institute of Technology under contract with the National Aeronautics and Space Administration.