| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1954 Y1 | 1957 06 05.40637 | 16 27 33.12 | +43 58 05.8 | 689 | ||
| C/1954 Y1 | 1957 06 27.26472 | 16 09 10.67 | +41 00 00.3 | 689 | ||
| C/1954 Y1 | 1957 06 27.29035 | 16 09 09.57 | +40 59 46.2 | 689 | ||
| C/1954 Y1 | 1957 07 19.18440 | 15 57 23.67 | +37 04 17.1 | 754 | ||
| C/1954 Y1 | 1957 07 21.26640 | 15 56 39.21 | +36 40 14.4 | 689 | ||
| C/1954 Y1 | 1957 07 21.29549 | 15 56 38.52 | +36 39 53.0 | 689 | ||
| C/1954 Y1 | 1957 07 23.15258 | 15 56 02.03 | +36 18 10.4 | 754 | ||
| C/1954 Y1 | 1957 07 24.15241 | 15 55 44.88 | +36 06 28.2 | 754 | ||
| C/1954 Y1 | 1957 08 21.19669 | 15 52 48.62 | +30 35 34.8 | 18.0 | N | 662 |
| C/1954 Y1 | 1957 08 21.24461 | 15 52 48.78 | +30 35 01.5 | 662 | ||
| C/1954 Y1 | 1957 09 01.22032 | 15 54 15.59 | +28 30 15.9 | 689 | ||
| C/1954 Y1 | 1957 09 01.24583 | 15 54 15.98 | +28 29 59.0 | 689 | ||
| C/1954 Y1 | 1957 09 20.13458 | 15 59 24.16 | +25 10 29.6 | 689 | ||
| C/1954 Y1 | 1957 09 20.18929 | 15 59 25.28 | +25 09 55.8 | 689 | ||
| C/1954 Y1 | 1957 09 24.15425 | 16 00 51.31 | +24 31 01.0 | 19.0 | N | 662 |
| C/1954 Y1 | 1957 09 24.19869 | 16 00 52.10 | +24 30 32.0 | 662 | ||
| C/1954 Y1 | 1958 02 16.46460 | 17 08 01.88 | +15 25 24.3 | 689 | ||
| C/1954 Y1 | 1958 02 16.50961 | 17 08 02.26 | +15 25 29.6 | 689 | ||
| C/1954 Y1 | 1958 04 13.38403 | 17 03 00.91 | +17 09 54.7 | 689 | ||
| C/1954 Y1 | 1958 04 13.45744 | 17 02 59.44 | +17 10 02.4 | 689 | ||
| C/1954 Y1 | 1958 05 15.27898 | 16 48 09.08 | +17 24 13.1 | 689 | ||
| C/1954 Y1 | 1958 05 15.35793 | 16 48 06.56 | +17 24 08.7 | 689 |