| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1954 Y1 | 1955 01 13.17924 | 04 10 55.39 | +24 23 22.3 | 662 | ||
| C/1954 Y1 | 1955 01 13.21628 | 04 10 53.85 | +24 23 32.3 | 662 | ||
| C/1954 Y1 | 1955 01 22.12903 | 04 05 16.72 | +25 08 33.6 | 662 | ||
| C/1954 Y1 | 1955 01 22.15397 | 04 05 15.91 | +25 08 40.8 | 662 | ||
| C/1954 Y1 | 1955 01 26.13542 | 04 03 09.49 | +25 28 44.9 | 662 | ||
| C/1954 Y1 | 1955 01 26.16035 | 04 03 08.75 | +25 28 52.3 | 662 | ||
| C/1954 Y1 | 1955 02 10.20831 | 03 57 33.47 | +26 45 17.3 | 662 | ||
| C/1954 Y1 | 1955 02 10.22008 | 03 57 33.24 | +26 45 21.4 | 662 | ||
| C/1954 Y1 | 1955 02 24.18646 | 03 55 42.99 | +27 58 28.1 | 672 | ||
| C/1954 Y1 | 1955 03 22.15144 | 04 00 04.79 | +30 24 02.3 | 662 | ||
| C/1954 Y1 | 1955 03 22.16944 | 04 00 05.13 | +30 24 08.4 | 662 | ||
| C/1954 Y1 | 1955 07 29.43425 | 05 47 47.37 | +46 56 05.5 | 662 | ||
| C/1954 Y1 | 1955 07 29.44256 | 05 47 47.94 | +46 56 11.0 | 662 | ||
| C/1954 Y1 | 1955 08 19.43639 | 06 10 47.63 | +50 52 52.4 | 662 | ||
| C/1954 Y1 | 1955 08 19.46069 | 06 10 49.16 | +50 53 10.0 | 662 | ||
| C/1954 Y1 | 1955 08 29.39372 | 06 21 33.88 | +52 59 37.2 | 662 | ||
| C/1954 Y1 | 1955 08 29.39994 | 06 21 34.23 | +52 59 42.0 | 662 | ||
| C/1954 Y1 | 1955 09 28.38970 | 06 51 38.76 | +60 31 50.7 | 662 | ||
| C/1954 Y1 | 1955 09 28.39385 | 06 51 39.01 | +60 31 55.3 | 662 | ||
| C/1954 Y1 | 1955 10 25.41276 | 07 09 51.26 | +68 56 44.0 | 662 |