| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1975 X1 | 1975 12 09.79479 | 12 20 17.55 | +09 27 18.2 | 9.0 | T | 882 |
| C/1975 X1 | 1975 12 09.79826 | 12 20 17.62 | +09 26 38.5 | 882 | ||
| C/1975 X1 | 1975 12 09.80104 | 12 20 17.83 | +09 26 11.4 | 9.0 | T | 372 |
| C/1975 X1 | 1975 12 09.80243 | 12 20 17.82 | +09 25 56.4 | 882 | ||
| C/1975 X1 | 1975 12 10.48960 | 12 20 49.00 | +07 17 51.0 | 662 | ||
| C/1975 X1 | 1975 12 10.53333 | 12 20 51.12 | +07 09 15.9 | 688 | ||
| C/1975 X1 | 1975 12 10.78993 | 12 21 03.60 | +06 18 27.7 | 882 | ||
| C/1975 X1 | 1975 12 10.80660 | 12 21 04.12 | +06 14 57.9 | 10.0 | T | 391 |
| C/1975 X1 | 1975 12 10.80729 | 12 21 04.30 | +06 15 03.4 | 882 | ||
| C/1975 X1 | 1975 12 10.81181 | 12 21 04.61 | +06 14 02.8 | 391 | ||
| C/1975 X1 | 1975 12 10.81736 | 12 21 04.69 | +06 12 59.4 | 391 | ||
| C/1975 X1 | 1975 12 10.82141 | 12 21 04.80 | +06 12 11.1 | 391 | ||
| C/1975 X1 | 1975 12 10.83347 | 12 21 05.51 | +06 09 45.5 | 9.0 | T | 372 |
| C/1975 X1 | 1975 12 10.86021 | 12 21 06.72 | +06 04 21.4 | 372 | ||
| C/1975 X1 | 1975 12 11.42294 | 12 21 35.09 | +04 06 40.2 | 801 | ||
| C/1975 X1 | 1975 12 11.52569 | 12 21 40.83 | +03 44 22.9 | 662 | ||
| C/1975 X1 | 1975 12 11.81458 | 12 21 56.74 | +02 40 40.7 | 323 | ||
| C/1975 X1 | 1975 12 12.36950 | 12 22 27.77 | +00 30 57.1 | 801 | ||
| C/1975 X1 | 1975 12 12.52500 | 12 22 36.64 | -00 06 44.6 | 688 | ||
| C/1975 X1 | 1975 12 12.53264 | 12 22 37.16 | -00 08 39.5 | 688 |