T'Lin's New Catalog

T'Lin's New Catalog (or TNC) was a method of stellar nomenclature, presumably developed by a Vulcan astronomer named T'Lin. T'Lin's New Catalog assigned a string of alphanumeric figures to an astronomical object, commonly abbreviated to a number prefaced by "TNC". 

TNC designated objects

 * TNC 50 (full designation TNC F3459-9-SF-50)
 * TNC-5527
 * TNC 65813 (aka Kabreigny Object)
 * TNC 89422 (aka Talos star group)