| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1991 Y1 | 1992 01 05.37827 | 21 33 33.83 | +13 17 50.9 | 411 | ||
| C/1991 Y1 | 1992 01 05.37915 | 21 33 34.06 | +13 17 49.9 | 411 | ||
| C/1991 Y1 | 1992 01 05.37989 | 21 33 34.27 | +13 17 48.3 | 411 | ||
| C/1991 Y1 | 1992 01 05.93719 | 21 35 59.97 | +12 57 53.9 | 801 | ||
| C/1991 Y1 | 1992 01 05.93900 | 21 36 00.44 | +12 57 50.0 | 801 | ||
| C/1991 Y1 | 1992 01 08.93149 | 21 49 25.32 | +11 02 13.8 | 801 | ||
| C/1991 Y1 | 1992 01 08.93293 | 21 49 25.75 | +11 02 10.7 | 801 | ||
| C/1991 Y1 | 1992 01 10.37583 | 21 56 07.11 | +10 00 37.2 | 411 | ||
| C/1991 Y1 | 1992 01 10.37666 | 21 56 07.29 | +10 00 34.7 | 411 | ||
| C/1991 Y1 | 1992 01 10.37722 | 21 56 07.48 | +10 00 33.6 | 411 | ||
| C/1991 Y1 | 1992 01 10.37832 | 21 56 07.78 | +10 00 29.9 | 411 | ||
| C/1991 Y1 | 1992 01 10.37919 | 21 56 07.99 | +10 00 29.4 | 411 | ||
| C/1991 Y1 | 1992 01 10.37979 | 21 56 08.20 | +10 00 27.1 | 411 | ||
| C/1991 Y1 | 1992 01 10.38073 | 21 56 08.45 | +10 00 24.1 | 411 | ||
| C/1991 Y1 | 1992 01 10.38131 | 21 56 08.61 | +10 00 23.1 | 411 | ||
| C/1991 Y1 | 1992 01 10.39601 | 21 56 12.71 | +09 59 41.7 | 897 | ||
| C/1991 Y1 | 1992 01 10.40602 | 21 56 15.33 | +09 59 14.5 | 897 | ||
| C/1991 Y1 | 1992 01 10.41354 | 21 56 17.73 | +09 58 56.8 | 897 | ||
| C/1991 Y1 | 1992 01 11.36777 | 22 00 47.81 | +09 15 52.5 | 411 | ||
| C/1991 Y1 | 1992 01 11.36834 | 22 00 47.97 | +09 15 51.0 | 411 |
