SAC 60
The members of the Saguaro Astronomy Club (pronounced sa-war-oh) of Phoenix, Arizona have provided much of the effort to compile this database. However, it could not have been completed without the skill of a variety of people who are not SAC members.
Type of object.  The code that applies is:

       ASTER  Asterism
       BRTNB  Bright Nebula
       CL+NB  Cluster with Nebulosity
       DRKNB  Dark Nebula
       GALCL  Galaxy cluster
       GALXY  Galaxy
       GLOCL  Globular Cluster
       GX+DN  Diffuse Nebula in a Galaxy
       GX+GC  Globular Cluster in a Galaxy
       G+C+N  Cluster with Nebulosity in a Galaxy
       LMCCN  Cluster with Nebulosity in the LMC
       LMCDN  Diffuse Nebula in the LMC
       LMCGC  Globular Cluster in the LMC
       LMCOC  Open cluster in the LMC
       NONEX  Nonexistent in RNGC
       OPNCL  Open Cluster
       PLNNB  Planetary Nebula
       SMCCN  Cluster with Nebulosity in the SMC
       SMCDN  Diffuse Nebula in the SMC
       SMCGC  Globular Cluster in the SMC
       SMCOC  Open cluster in the SMC
       SNREM  Supernova Remnant
       QUASR  Quasar
       UVSOB  Unverified Southern Object
       #STAR  # Stars (#=1, 2, 3, 4, 5, etc.)