Object: Open cluster NGC 7790 Constell: CAS RA: 23h 56.7m Decl: +61° 24' Epoch: 2000 Mag: 9.4m Size: 9' Type: I 2 p Observer: Jere Kahanpää Obs. place: Jyväskylä, Finland Date/Time: 3./4.10.1991, 23.30 Telescope: N 205/1000 Magn: 133x Filter: Field: 22' NE Lim.mag: 5.5m Background sky: 3 Seeing: 4 Weather: Brightness: 3 Alt: Description: A small and quite faint open cluster. Four bright (mag. 11) stars and a L-shaped glow pointing towards W. Easy to find but difficult to identify as this field includes at least 5 clusters within 1° (See NGC 7788, Berk 58, K12, H21, Frolov 1)