| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1956 R1 | 1957 08 23.13326 | 10 56 28.53 | +56 39 26.3 | 711 | ||
| C/1956 R1 | 1957 08 25.12135 | 10 59 42.39 | +56 40 29.0 | 711 | ||
| C/1956 R1 | 1957 09 19.48153 | 11 40 17.16 | +57 38 45.7 | 689 | ||
| C/1956 R1 | 1957 09 19.49954 | 11 40 18.92 | +57 38 50.4 | 689 | ||
| C/1956 R1 | 1957 11 30.45493 | 13 36 19.68 | +69 26 21.3 | 689 | ||
| C/1956 R1 | 1957 11 30.50065 | 13 36 24.45 | +69 27 04.6 | 689 | ||
| C/1956 R1 | 1957 12 03.54748 | 13 41 32.30 | +70 14 36.7 | 17.0 | N | 662 |
| C/1956 R1 | 1957 12 03.56970 | 13 41 34.67 | +70 14 57.8 | 662 | ||
| C/1956 R1 | 1958 01 20.47204 | 15 10 21.90 | +83 51 45.8 | 689 | ||
| C/1956 R1 | 1958 01 20.51878 | 15 10 27.93 | +83 52 33.0 | 689 | ||
| C/1956 R1 | 1958 01 21.35845 | 15 12 23.18 | +84 06 38.6 | 711 | ||
| C/1956 R1 | 1958 01 22.26267 | 15 14 30.62 | +84 21 44.4 | 711 | ||
| C/1956 R1 | 1958 01 25.22603 | 15 21 47.31 | +85 10 47.9 | 711 | ||
| C/1956 R1 | 1958 01 25.24131 | 15 21 49.82 | +85 11 10.1 | 711 | ||
| C/1956 R1 | 1958 03 10.26024 | 04 12 18.58 | +84 24 35.3 | 689 | ||
| C/1956 R1 | 1958 04 11.20325 | 05 16 08.22 | +79 16 19.1 | 689 | ||
| C/1956 R1 | 1958 04 11.26869 | 05 16 15.69 | +79 15 48.7 | 689 |