| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1991 Y1 | 1991 12 31.37022 | 21 12 46.23 | +15 56 48.0 | 411 | ||
| C/1991 Y1 | 1991 12 31.37124 | 21 12 46.49 | +15 56 46.2 | 411 | ||
| C/1991 Y1 | 1991 12 31.37227 | 21 12 46.72 | +15 56 43.7 | 411 | ||
| C/1991 Y1 | 1991 12 31.38186 | 21 12 48.96 | +15 56 27.7 | 411 | ||
| C/1991 Y1 | 1991 12 31.38269 | 21 12 49.17 | +15 56 25.4 | 411 | ||
| C/1991 Y1 | 1991 12 31.38354 | 21 12 49.36 | +15 56 24.4 | 411 | ||
| C/1991 Y1 | 1991 12 31.38547 | 21 12 49.89 | +15 56 22.3 | 411 | ||
| C/1991 Y1 | 1991 12 31.38646 | 21 12 50.15 | +15 56 20.2 | 411 | ||
| C/1991 Y1 | 1992 01 01.39080 | 21 16 51.42 | +15 27 01.1 | 411 | ||
| C/1991 Y1 | 1992 01 01.39158 | 21 16 51.66 | +15 26 59.3 | 411 | ||
| C/1991 Y1 | 1992 01 01.39256 | 21 16 51.87 | +15 26 57.0 | 411 | ||
| C/1991 Y1 | 1992 01 01.39333 | 21 16 52.09 | +15 26 57.5 | 411 | ||
| C/1991 Y1 | 1992 01 01.39490 | 21 16 52.42 | +15 26 53.5 | 411 | ||
| C/1991 Y1 | 1992 01 01.39564 | 21 16 52.57 | +15 26 51.6 | 411 | ||
| C/1991 Y1 | 1992 01 01.39642 | 21 16 52.75 | +15 26 50.0 | 411 | ||
| C/1991 Y1 | 1992 01 01.39716 | 21 16 52.92 | +15 26 49.4 | 411 | ||
| C/1991 Y1 | 1992 01 01.92744 | 21 19 02.37 | +15 10 51.8 | 801 | ||
| C/1991 Y1 | 1992 01 01.92938 | 21 19 02.85 | +15 10 48.0 | 801 | ||
| C/1991 Y1 | 1992 01 02.36644 | 21 20 50.29 | +14 57 23.9 | 411 | ||
| C/1991 Y1 | 1992 01 02.36707 | 21 20 50.44 | +14 57 23.2 | 411 |
