... 12.5" 16mm Jun 04 1981 12.5" 24mm Jun 18 1980 12.5" 24mm VDIF,VF,MS,FAINT PATCH,FAINT TRI OF *'S AROUND OBJECT DIF,MB,ML,10 MAG *'S VF,FAINT TRI OF *'S SURROUND OBJECT NGC 6240 Galaxy I0: pec PB,ML,OVAL,R,SHISB,B* IN GAL,R=G VF,PL,LE,DIF Jun 27 2003 12.5 ...
7. http://www.wro.org/scodova/RNGC_by_Date.pdf
... OBJECT,OUTER EDGES FAINTER THAN MIDDLE 6907 12.5" Cap 16mm EDIF,PF,MS,F* TO E 1 GAL DIA,UB,NND,OVAL 6927 12.5" Del 12mm EDIF,VS,ES,SLIGHTLY ELONG,DNUC,SBM,PAIR/6930/6928,ALL 3 IN LINE E-W 6928 12.5" Del 12mm MF,PS,ELONG,PAIR/6927/6930,BRT OF 3,NND,PATCH ...
8. http://www.wro.org/scodova/RNGC_by_Catalog.pdf
... 16mm Jun 04 1981 12.5" 24mm Jun 18 1980 12.5" 24mm VDIF,VF,MS,FAINT PATCH,FAINT TRI OF *'S AROUND OBJECT DIF,MB,ML,10 MAG *'S VF,FAINT TRI OF *'S SURROUND OBJECT NGC 6236 Dra Galaxy SAB(s)cd DIF,VF,VL,OVAL,PATCH,UB,NND,PAIR=6232,R=P F,PL Jun 24 2003 12.5 ...