The Collinder catalog was created by the Swedish astronomer Per Collinder in 1931. This catalog contains 471 open star clusters . 'Cr' is usually used as an abbreviation for the catalog and identifier for its objects.
List of all Collinder objects
|NGC||New General Catalog|
Objects marked as asterism are not real star clusters, nor are they contained in other catalogs.
- Collinder catalog, bibcode : 1931AnLun ... 2 .... 1C
- The Collinder Catalog (Updated) on cloudynights.com