| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1959 Y1 | 1960 04 25.41413 | 21 29 45.97 | +43 51 42.0 | 689 | ||
| C/1959 Y1 | 1960 04 29.36018 | 17 32 36.69 | +76 39 16.7 | 689 | ||
| C/1959 Y1 | 1960 04 29.36364 | 17 32 03.11 | +76 39 54.1 | 689 | ||
| C/1959 Y1 | 1960 05 01.38376 | 13 15 06.88 | +71 59 05.4 | 689 | ||
| C/1959 Y1 | 1960 05 01.38515 | 13 15 01.27 | +71 58 40.5 | 689 | ||
| C/1959 Y1 | 1960 05 06.30712 | 11 27 29.83 | +52 01 48.3 | 689 | ||
| C/1959 Y1 | 1960 05 06.31336 | 11 27 27.25 | +52 00 46.3 | 689 | ||
| C/1959 Y1 | 1960 05 11.18661 | 11 08 55.15 | +42 19 21.3 | 689 | ||
| C/1959 Y1 | 1960 05 11.19007 | 11 08 54.74 | +42 19 03.7 | 689 | ||
| C/1959 Y1 | 1960 05 16.24686 | 11 02 02.56 | +36 48 41.8 | 689 | ||
| C/1959 Y1 | 1960 05 16.25102 | 11 02 02.29 | +36 48 29.3 | 689 | ||
| C/1959 Y1 | 1960 05 25.22017 | 10 58 43.54 | +31 25 00.4 | 689 | ||
| C/1959 Y1 | 1960 05 25.23056 | 10 58 43.51 | +31 24 44.0 | 689 | ||
| C/1959 Y1 | 1960 05 31.24101 | 10 59 07.91 | +29 09 59.1 | 17.5 | N | 689 |
| C/1959 Y1 | 1960 05 31.26109 | 10 59 08.10 | +29 09 35.7 | 689 | ||
| C/1959 Y1 | 1960 06 17.19828 | 11 04 58.18 | +25 06 46.6 | 18.0 | N | 689 |
| C/1959 Y1 | 1960 06 17.25367 | 11 04 59.75 | +25 06 10.1 | 689 |
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