Object: Open cluster NGC663 Constell: CAS RA: 01h 46.0m Decl: +61° 15' Epoch: 2000 Mag: 7.1m Size: 16' Type: III 2 m Observer: Jere Kahanpää Obs. place: Jyväskylä, Finland Date/Time: 19./20.3.1993, 21.45 Telescope: R 150/2063 Magn: 52x Filter: Field: 50' NE Lim.mag: 5.2 Background sky: 3-4 Seeing: 2 Weather: Brightness: 1 Alt: 45° Description: A beautiful cluster. Elliptical, major axis oriented W-E. The brightest stars forms several pairs. Quite rich and even in this weather plotting all fainter stars was quite diffcult. About 40 stars was seen.