1989 PB
1989 PB
1989 PB.
1989 QF
1989 QF
1989 QF
1989 QF (Object Shoemaker).
1989 RC
1989 RC
1989 RS1
1989 RS1
1989 spring observations from Alberta, Canada.
1989 Tatry CCD Spectrum
1989 TE and 1989 TF.
1989 UP
1989 UP
1989 UP
1989 UP
1989 UP
1989 UP.