Object: Open cluster NGC 3766 Constell: CEN RA: 11h 36.10m Decl: -61° 35' Epoch: 2000 Mag: 5.3m Size: 12' Type: I 3 r Observer: Jere Kahanpää Obs. place: LaSilla, Chile Date/Time: 23./24.11.1993, 02.00 Telescope: B 9x25 Magn: 9x Filter: Field: 4.5° NE Lim.mag: 5.6m Background sky: 2 Seeing: 1 Weather: 4/5 Moon low NW Brightness: 2 Alt: Description: Bright but small cluster: a 15' glow with 3 faint stars embedded in it. Orientation not confirmed