SIMBAD query result

Please have a look at the "Dictionary of Nomenclature"

Result of query: info cati O Oph

.

 [Class]      Acronym  (Explanation)   . . . . . . . . . in Simbad, use:
 [GtowardsCl(Coma Cluster = ACO 1656)] O (Oemler)  . . . [O76b] NN
 [GtowardsCl in...] O (Oegerle+) . . . . . . . . . . . . [OHF95] {ACO 1775} NNN
                                                      or [OHF95] {ACO 2029} NNN
                                                      or [OHF95] {ACO 2142} NNN
                                                      or [OHF95] {ACO 2319} NNN
              Cl* NGC 5139 O (Object)  . . . . . . . . . Cl* NGC 5139 HWO NNNN
              Cl* NGC 7790 O (Odewahn+)  . . . . . . . . Cl* NGC 7790 OBH NNN
              Cl* NGC 869 O (Oosterhoff) . . . . . . . . NGC 869 NNNN
              Cl* NGC 884 O (Oosterhoff) . . . . . . . . NGC 884 NNNN
              Cl* Trumpler 1 O (Oja) . . . . . . . . . . Cl Trumpler 1 NNNN