Object: Open cluster NGC 189 Constell: CAS RA: 00h 38.7m Decl: +61° 04' Epoch: 2000 Mag: 8.8m Size: 3.7' Type: 2000 Observer: Jere Kahanpää Obs. place: Helsinki, Finland Date/Time: 10./11.10.1996, 23.06 Telescope: C 200/2000 Magn: 160x Filter: Field: 19' NE Lim.mag: 5.4m Background sky: 4 Seeing: 2-3 Weather: No Moon, +4 °C Brightness: 3 Alt: 80° Description: A round cluster of stars mag. 11...13,5. Half a dozen stars of 11th magnitude and a scattering of fainter ones bringing the total up to 20. Trumpler type is good. Est. diam. 5.5'