1989 PB.

1989 QF

1989 QF (Object Shoemaker).

1989 RC

1989 RS1

1989 spring observations from Alberta, Canada.

1989 Tatry CCD Spectrum

1989 UP

1989 UP.

1989 UR

1989 V and K-Band Photometry of WY Cnc

1989 V-Band Light Curve of RT And

1989 VA

1989 WM.

1989 X-ray outburst from A0535+26 (HDE 245770 or V725 Tau).

1989, 1990 Photoelectric Light Curves of RT And

19894 November 28 meeting of the British Astronomical Association

1989: topjaar voor het noorderlicht.

198ampella

199 Byblis CCD Spectrum