... 1990 H34-5 Nebula E+R EL,E,EPSILONORI INVP Mar 22 2004 12.5" 25mm DIF,VF,ML,W/OIII HINT OF NEB AROUND BRT * DETECTED,R=P NGC 1999 31mmT5 H33-4 Nebula E *10,11INV IN NEB Feb 20 2006 31" W/OIII,DIF,MB,VL,NEB DETAIL DET AROUND *,R=G MB,PS,BNUC,VMBM,R,12MM ...
5. http://www.wro.org/neumann/RNGC_by_Herschel1.pdf
... Galaxy E3 CL,L,LC B,PL,R,PSBM Mar 29 2006 8" 19mmW F,PS,R=F 11mmT6 PB,L,OVAL,FNUC,MSB,R=G 17mmT4 PB,L,R,BNUC,HISB,R=G 25mmPL CLEAR NIGHT - MEGASTAR CONTROL H33-4 H33-6 NGC 1999 NGC 869 Ori Per Nebula E Open Cluster 6.6 I 3 r *10,11INV IN NEB CL,VVL,VRI,*7 ...
6. http://www.wro.org/scodova/RNGC_by_Herschel1.pdf
... PL,R,PSBM Mar 03 1984 12.5" 12mm Jan 30 1981 12.5" 24mm MB,PL,BNUC,R,BM,CLOSE COMP SW PB,PS,DNUC H33-4 Oct 16 1982 NGC 1999 12.5" 24mm Ori Nebula E *10,11INV IN NEB Feb 20 2006 31" MB,PS,BNUC,VMBM,R,12MM-EYE APPEARANCE,TAPPERED ENDS,SOME DARK AREA IN NEB ...