| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1989 X1 | 1990 05 21.69783 | 20 51 09.85 | +13 42 05.8 | 381 | ||
| C/1989 X1 | 1990 05 21.70098 | 20 51 06.89 | +13 41 33.9 | 381 | ||
| C/1989 X1 | 1990 05 21.72399 | 20 50 45.44 | +13 37 41.5 | 381 | ||
| C/1989 X1 | 1990 05 21.95000 | 20 47 16.04 | +12 59 03.9 | 095 | ||
| C/1989 X1 | 1990 05 21.99166 | 20 46 36.92 | +12 51 56.3 | 095 | ||
| C/1989 X1 | 1990 05 23.01962 | 20 30 24.43 | +09 48 34.8 | 046 | ||
| C/1989 X1 | 1990 05 23.04558 | 20 29 59.74 | +09 43 47.6 | 503 | ||
| C/1989 X1 | 1990 05 23.92922 | 20 15 44.95 | +06 57 28.5 | 095 | ||
| C/1989 X1 | 1990 05 23.94306 | 20 15 31.15 | +06 54 49.8 | 095 | ||
| C/1989 X1 | 1990 05 24.05017 | 20 13 46.48 | +06 34 14.3 | 046 | ||
| C/1989 X1 | 1990 05 24.05087 | 20 13 45.76 | +06 34 04.3 | 046 | ||
| C/1989 X1 | 1990 05 25.06201 | 19 57 13.68 | +03 16 27.0 | 503 | ||
| C/1989 X1 | 1990 05 25.13090 | 19 56 04.26 | +03 02 47.0 | 006 | ||
| C/1989 X1 | 1990 05 25.13854 | 19 55 56.59 | +03 01 16.3 | 006 | ||
| C/1989 X1 | 1990 05 25.67118 | 19 47 13.73 | +01 15 55.1 | 5.5 | T | 392 |
| C/1989 X1 | 1990 05 25.68322 | 19 47 01.90 | +01 13 33.0 | 392 | ||
| C/1989 X1 | 1990 05 26.03420 | 19 41 16.68 | +00 03 58.6 | 046 | ||
| C/1989 X1 | 1990 05 26.03524 | 19 41 15.60 | +00 03 46.5 | 046 | ||
| C/1989 X1 | 1990 05 26.34856 | 19 36 07.37 | -00 58 05.8 | 801 | ||
| C/1989 X1 | 1990 05 26.34971 | 19 36 06.23 | -00 58 19.0 | 801 |
