| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1959 Y1 | 1960 01 04.06723 | 01 34 33.05 | +02 24 22.9 | 15.5 | N | 689 |
| C/1959 Y1 | 1960 01 04.07278 | 01 34 31.84 | +02 24 14.8 | 689 | ||
| C/1959 Y1 | 1960 01 18.07277 | 00 52 32.64 | -02 22 39.9 | 15.3 | N | 689 |
| C/1959 Y1 | 1960 01 18.07762 | 00 52 32.00 | -02 22 44.0 | 689 | ||
| C/1959 Y1 | 1960 01 28.08324 | 00 32 01.49 | -04 44 48.7 | 16.0 | N | 689 |
| C/1959 Y1 | 1960 01 28.08809 | 00 32 00.92 | -04 44 52.8 | 689 | ||
| C/1959 Y1 | 1960 02 07.09307 | 00 16 11.73 | -06 35 38.6 | 15.6 | N | 689 |
| C/1959 Y1 | 1960 02 07.09740 | 00 16 11.37 | -06 35 41.0 | 689 | ||
| C/1959 Y1 | 1960 02 15.09384 | 00 05 12.48 | -07 52 18.3 | 689 | ||
| C/1959 Y1 | 1960 02 15.09869 | 00 05 12.12 | -07 52 20.5 | 689 | ||
| C/1959 Y1 | 1960 02 17.09664 | 00 02 32.17 | -08 10 38.0 | 15.0 | N | 689 |
| C/1959 Y1 | 1960 02 17.10149 | 00 02 31.81 | -08 10 40.5 | 689 | ||
| C/1959 Y1 | 1960 04 04.50740 | 22 40 28.58 | -09 24 47.1 | 689 | ||
| C/1959 Y1 | 1960 04 04.50953 | 22 40 28.51 | -09 24 44.2 | 689 | ||
| C/1959 Y1 | 1960 04 08.49786 | 22 34 07.93 | -07 05 01.5 | 689 | ||
| C/1959 Y1 | 1960 04 08.50064 | 22 34 07.70 | -07 04 54.3 | 689 | ||
| C/1959 Y1 | 1960 04 17.47980 | 22 17 29.63 | +04 45 49.4 | 689 | ||
| C/1959 Y1 | 1960 04 17.48397 | 22 17 28.96 | +04 46 23.8 | 689 | ||
| C/1959 Y1 | 1960 04 21.44248 | 22 03 59.10 | +17 42 03.9 | 689 | ||
| C/1959 Y1 | 1960 04 25.41206 | 21 29 47.94 | +43 50 35.7 | 689 |
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