Possible nova in Mon (GSC 4822.39) prediscovery negative observations object YYYYMMDD(UT) mag code GSC4822.39 19990117.570 <133p Knk.VSOLJ GSC4822.39 19991208.630 <133p Knk.VSOLJ GSC4822.39 19991230.603 <133p Knk.VSOLJ GSC4822.39 20000115.711 <133p Knk.VSOLJ GSC4822.39 20001104.680 <133p Knk.VSOLJ GSC4822.39 20001222.715 <133p Knk.VSOLJ GSC4822.39 20010218.631 <133p Knk.VSOLJ GSC4822.39 20011019.681 <133p Knk.VSOLJ GSC4822.39 20011123.718 <133p Knk.VSOLJ Observer's code: Knk: K.Kanatsu(Matsue,Shimane,Japan) instruments:f200mm+PO0(T-MAX400(120)) comment:Seq:GSC