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Visual observations Instr : 8x50 Binocular ICQ Format Comet observations of : C/1989 X1 Austin IIIYYYYMnL YYYY MM DD.DD eM/mm.m:r AAA.ATF/xxxx /dd.ddnDC /t.ttmANG ICQ XX*OBSxxx 1989X1 1990 03 31.80 S 5.2 AA 5.0B 8 1.5 8 ICQ XX DIE02 1989X1 1990 04 01.80 S 5.5 AA 5.0B 8 1.5 8 2 m 15 ICQ XX DIE02 1989X1 1990 04 04.79 S 5.1 AA 5.0B 8 1.5 8 3 m ICQ XX DIE02 1989X1 1990 04 08.81 S AA 5.0B 8 2.5 8 5 m 15 ICQ XX DIE02 1989X1 1990 04 09.81 S 5.0 AA 5.0B 8 2.5 8 5 m 15 ICQ XX DIE02 1989X1 1990 04 11.81 S 5.1 AA 5.0B 8 2.5 8 30 m 15 ICQ XX DIE02 1989X1 1990 04 20.12 S 5.4 AA 5.0B 8 3.5 8 40 m345 ICQ XX DIE02 1989X1 1990 04 25.11 S 5.4 AA 5.0B 8 3.5 8 60 m330 ICQ XX DIE02 1989X1 1990 04 26.11 S 5.3 AA 5.0B 8 4 8 40 m325 ICQ XX DIE02 1989X1 1990 04 28.09 S 5.4 AA 5.0B 8 4 8 60 m320 ICQ XX DIE02 1989X1 1990 04 30.09 S 5.3 AA 5.0B 8 4.5 8 40 m305 ICQ XX DIE02 1989X1 1990 05 01.07 S 5.3 AA 5.0B 8 4.5 8 60 m295 ICQ XX DIE02 1989X1 1990 05 02.06 S 5.2 AA 5.0B 8 5 8 60 m295 ICQ XX DIE02 1989X1 1990 05 04.06 S 5.2 AA 5.0B 8 5.5 8 60 m295 ICQ XX DIE02 1989X1 1990 05 05.08 S 5.3 AA 5.0B 8 5.5 8 40 m295 ICQ XX DIE02 1989X1 1990 05 17.01 S 5.3 AA 5.0B 8 7.5 8 ICQ XX DIE02 1989X1 1990 05 23.98 S 5.3 AA 5.0B 8 8 8 ICQ XX DIE02 1989X1 1990 05 25.05 S 5.4 AA 5.0B 8 9 8 60 m290 ICQ XX DIE02 1989X1 1990 05 26.03 S 5.3 AA 5.0B 8 9 8 ICQ XX DIE02 1989X1 1990 05 27.02 S 5.4 AA 5.0B 8 9 8 ICQ XX DIE02 1989X1 1990 05 30.01 S 5.5 AA 5.0B 8 9 8 ICQ XX DIE02