| Name | Date/time | RA | Dec | Magnitude | Filter | Site Code |
|---|---|---|---|---|---|---|
| C/1939 H1 | 1939 04 21.85802 | 03 14 17.54 | +44 02 04.8 | 999 | ||
| C/1939 H1 | 1939 04 22.06820 | 03 18 19.71 | +43 58 39.4 | 438 | ||
| C/1939 H1 | 1939 04 22.85702 | 03 32 56.35 | +43 40 23.4 | 999 | ||
| C/1939 H1 | 1939 04 22.87933 | 03 33 20.54 | +43 39 50.8 | 020 | ||
| C/1939 H1 | 1939 04 29.05104 | 04 57 13.11 | +38 45 54.6 | 438 | ||
| C/1939 H1 | 1939 04 30.05729 | 05 06 31.83 | +37 49 47.1 | 438 | ||
| C/1939 H1 | 1939 05 06.04236 | 05 46 15.70 | +32 41 51.7 | 438 | ||
| C/1939 H1 | 1939 05 08.85892 | 05 58 44.25 | +30 38 35.1 | 999 | ||
| C/1939 H1 | 1939 05 12.06726 | 06 10 03.17 | +28 34 38.7 | 438 | ||
| C/1939 H1 | 1939 05 12.87066 | 06 12 30.61 | +28 06 05.3 | 999 | ||
| C/1939 H1 | 1939 05 17.08389 | 06 23 36.31 | +25 50 50.2 | 438 | ||
| C/1939 H1 | 1939 05 19.87141 | 06 29 37.80 | +24 32 34.6 | 999 |