| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1954 Y1 | 1955 10 25.42803 | 07 09 51.51 | +68 57 03.2 | 662 | ||
| C/1954 Y1 | 1955 11 25.21010 | 06 49 10.39 | +79 23 32.1 | 662 | ||
| C/1954 Y1 | 1955 11 25.21980 | 06 49 09.00 | +79 23 42.3 | 662 | ||
| C/1954 Y1 | 1956 02 04.12052 | 00 06 53.69 | +79 08 48.8 | 662 | ||
| C/1954 Y1 | 1956 02 04.13992 | 00 06 53.65 | +79 08 41.6 | 662 | ||
| C/1954 Y1 | 1956 03 18.14685 | 00 40 38.53 | +78 11 04.2 | 662 | ||
| C/1954 Y1 | 1956 03 18.15517 | 00 40 39.22 | +78 11 05.5 | 662 | ||
| C/1954 Y1 | 1956 05 19.21111 | 04 28 42.23 | +86 09 27.6 | 662 | ||
| C/1954 Y1 | 1956 08 03.20781 | 13 42 21.36 | +70 52 06.0 | 662 | ||
| C/1954 Y1 | 1956 08 03.22309 | 13 42 23.04 | +70 51 48.6 | 662 | ||
| C/1954 Y1 | 1956 08 07.10975 | 13 49 17.72 | +69 41 27.7 | 754 | ||
| C/1954 Y1 | 1956 09 03.09502 | 14 32 16.96 | +61 40 55.6 | 754 | ||
| C/1954 Y1 | 1956 12 30.45035 | 16 55 56.11 | +40 49 50.8 | 754 | ||
| C/1954 Y1 | 1956 12 30.46701 | 16 55 56.91 | +40 49 47.6 | 754 | ||
| C/1954 Y1 | 1957 03 21.24530 | 17 27 32.58 | +43 45 00.3 | 754 | ||
| C/1954 Y1 | 1957 04 26.29544 | 17 06 49.35 | +45 39 18.5 | 711 | ||
| C/1954 Y1 | 1957 04 28.25270 | 17 05 07.24 | +45 41 14.0 | 711 | ||
| C/1954 Y1 | 1957 05 01.26042 | 17 02 24.45 | +45 42 58.3 | 711 | ||
| C/1954 Y1 | 1957 05 02.20428 | 17 01 32.07 | +45 43 11.3 | 711 | ||
| C/1954 Y1 | 1957 06 05.37382 | 16 27 35.03 | +43 58 18.6 | 689 |