| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1957 P1 | 1957 08 31.16877 | 13 22 50.83 | +18 36 57.3 | 689 | ||
| C/1957 P1 | 1957 08 31.17466 | 13 22 52.86 | +18 36 33.7 | 689 | ||
| C/1957 P1 | 1957 09 15.10838 | 14 22 48.47 | +05 27 27.4 | 689 | ||
| C/1957 P1 | 1957 09 15.15028 | 14 22 55.88 | +05 25 41.4 | 689 | ||
| C/1957 P1 | 1958 02 17.52346 | 17 30 15.06 | -25 56 45.7 | 16.8 | N | 689 |
| C/1957 P1 | 1958 02 17.53593 | 17 30 15.23 | -25 56 48.8 | 689 | ||
| C/1957 P1 | 1958 04 25.42704 | 16 59 54.53 | -31 01 31.0 | 18.0 | N | 689 |
| C/1957 P1 | 1958 04 25.45336 | 16 59 52.67 | -31 01 36.5 | 689 | ||
| C/1957 P1 | 1958 04 26.41575 | 16 58 45.02 | -31 04 41.6 | 17.5 | N | 662 |
| C/1957 P1 | 1958 04 26.43590 | 16 58 43.51 | -31 04 46.0 | 662 | ||
| C/1957 P1 | 1958 05 12.35723 | 16 38 23.77 | -31 42 12.2 | 18.0 | N | 689 |
| C/1957 P1 | 1958 05 12.37940 | 16 38 21.92 | -31 42 14.2 | 689 | ||
| C/1957 P1 | 1958 06 23.25507 | 15 47 25.17 | -31 19 46.2 | 18.8 | N | 689 |
| C/1957 P1 | 1958 06 23.30008 | 15 47 22.56 | -31 19 40.2 | 689 | ||
| C/1957 P1 | 1958 07 09.19851 | 15 35 17.48 | -30 49 59.6 | 689 | ||
| C/1957 P1 | 1958 07 09.24560 | 15 35 15.70 | -30 49 53.9 | 19.0 | N | 689 |