| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1989 Y2 | 1989 12 28.50544 | 04 21 34.33 | +01 09 02.8 | 14.0 | T | 897 |
| C/1989 Y2 | 1989 12 28.51516 | 04 21 31.07 | +01 08 54.8 | 897 | ||
| C/1989 Y2 | 1989 12 28.59867 | 04 21 03.03 | +01 07 50.3 | 14.5 | T | 877 |
| C/1989 Y2 | 1989 12 28.60770 | 04 21 00.67 | +01 07 38.9 | 877 | ||
| C/1989 Y2 | 1989 12 28.78872 | 04 20 01.74 | +01 05 28.3 | 056 | ||
| C/1989 Y2 | 1989 12 28.80564 | 04 19 55.86 | +01 05 16.1 | 046 | ||
| C/1989 Y2 | 1989 12 28.81003 | 04 19 54.62 | +01 05 13.2 | 046 | ||
| C/1989 Y2 | 1989 12 28.81094 | 04 19 53.59 | +01 05 09.8 | 056 | ||
| C/1989 Y2 | 1989 12 29.74815 | 04 14 53.75 | +00 53 43.9 | 056 | ||
| C/1989 Y2 | 1989 12 29.79186 | 04 14 39.66 | +00 53 16.5 | 046 | ||
| C/1989 Y2 | 1989 12 29.79531 | 04 14 38.50 | +00 53 10.2 | 056 | ||
| C/1989 Y2 | 1989 12 29.79626 | 04 14 38.23 | +00 53 11.8 | 046 | ||
| C/1989 Y2 | 1989 12 30.44931 | 04 11 14.63 | +00 45 38.6 | 14.0 | T | 385 |
| C/1989 Y2 | 1989 12 30.46667 | 04 11 09.26 | +00 45 27.3 | 385 | ||
| C/1989 Y2 | 1989 12 30.63819 | 04 10 16.00 | +00 43 32.0 | 896 | ||
| C/1989 Y2 | 1989 12 30.64618 | 04 10 13.89 | +00 43 27.2 | 896 | ||
| C/1989 Y2 | 1989 12 30.74330 | 04 09 44.23 | +00 42 20.2 | 056 | ||
| C/1989 Y2 | 1989 12 30.78831 | 04 09 30.59 | +00 41 46.0 | 056 | ||
| C/1989 Y2 | 1989 12 31.72361 | 04 04 50.91 | +00 31 32.7 | 056 | ||
| C/1989 Y2 | 1989 12 31.79828 | 04 04 29.06 | +00 30 46.6 | 046 |
