Object: Open cluster NGC 1647 Constell: TAU RA: 04h 46.0m Decl: +19° 04' Epoch: 2000 Mag: 6.4m Size: 45' Type: II 2 m Observer: Jere Kahanpää Obs. place: Jyväskylä, Finland Date/Time: 21./22.12.1992, 22.25 Telescope: N 205/1000 Magn: 63x Filter: Field: 60' NE Lim.mag: 5.6m Background sky: 2 Seeing: 1 Weather: Brightness: 1 Alt: Description: A nice cluster, diameter 3/4 of the field. Stars not very bright (10...), but the cluster is quite rich. Includes several close pairs.