| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1989 Y2 | 1989 12 02.64622 | 07 14 35.51 | +08 17 28.0 | 897 | ||
| C/1989 Y2 | 1989 12 02.64965 | 07 14 34.19 | +08 17 28.6 | 14.0 | T | 897 |
| C/1989 Y2 | 1989 12 19.59848 | 05 17 07.60 | +03 24 08.0 | 13.0 | T | 369 |
| C/1989 Y2 | 1989 12 19.61858 | 05 16 59.30 | +03 23 47.0 | 369 | ||
| C/1989 Y2 | 1989 12 21.51635 | 05 04 09.71 | +02 51 43.4 | 14.0 | T | 413 |
| C/1989 Y2 | 1989 12 21.56496 | 05 03 49.23 | +02 50 52.5 | 413 | ||
| C/1989 Y2 | 1989 12 24.49892 | 04 45 00.30 | +02 04 35.6 | 13.0 | T | 413 |
| C/1989 Y2 | 1989 12 24.64931 | 04 44 04.50 | +02 02 14.0 | 13.0 | T | 372 |
| C/1989 Y2 | 1989 12 26.52894 | 04 32 46.61 | +01 35 18.8 | 413 | ||
| C/1989 Y2 | 1989 12 26.83368 | 04 31 00.19 | +01 30 57.9 | 046 | ||
| C/1989 Y2 | 1989 12 26.84774 | 04 30 55.59 | +01 30 48.5 | 046 | ||
| C/1989 Y2 | 1989 12 27.46007 | 04 27 24.67 | +01 22 41.8 | 413 | ||
| C/1989 Y2 | 1989 12 27.50241 | 04 27 10.06 | +01 22 07.4 | 413 | ||
| C/1989 Y2 | 1989 12 27.61267 | 04 26 32.54 | +01 20 34.1 | 13.0 | T | 372 |
| C/1989 Y2 | 1989 12 27.61331 | 04 26 32.68 | +01 20 37.5 | 13.0 | T | 402 |
| C/1989 Y2 | 1989 12 27.62159 | 04 26 29.92 | +01 20 24.4 | 13.0 | T | 402 |
| C/1989 Y2 | 1989 12 27.81424 | 04 25 25.56 | +01 17 53.1 | 12.0 | T | 056 |
| C/1989 Y2 | 1989 12 27.87685 | 04 25 03.63 | +01 17 06.1 | 056 | ||
| C/1989 Y2 | 1989 12 27.91146 | 04 24 52.06 | +01 16 39.1 | 046 | ||
| C/1989 Y2 | 1989 12 27.91887 | 04 24 49.27 | +01 16 30.9 | 046 |