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Hipparchos found 3 objects; two were new: the double cluster in Perseus. M 44 was first recorded by Aratos.
| D | N | NI | Y | I | T | Discoverer | Name | Con | Type | S |
| 1 | N | 869 | -130 | E | v | Double Cluster, Chi Per | PER | I3r | 4 | |
| 1 | N | 884 | -130 | E | v | Double Cluster, Chi Per | PER | I3r | 4 | |
| N | 2632 | -130 | E | v | Aratos -260 | M 44, Praesepe, Beehive Cluster | CNC | II2m | 4 |