Object: Open cluster NGC 7039 Constell: CYG RA: 21h 11.2m Decl: +45° 39' Epoch: 2000 Mag: 7.6m Size: 25' Type: III 2 p Observer: Jere Kahanpää Obs. place: Hartola, Finland Date/Time: 22./23.8.1996, 02.45 Telescope: N 205/1000 Magn: 80x Filter: Field: 37' NE Lim.mag: 5.7m Background sky: 3 Seeing: 2-3 Weather: +10 °C, no Moon. Strong twilight NE. Brightness: 3 Alt: 65° Description: Surrounds a mag. 7 star. Estim. size 13'. The catal. size includes probably also the circle of bright stars which surrounds the cluster. Visually these don't look like members though. About 40 stars mag. 7,10...12. Most stars near mag. 11, own Tr-type III 1 m/p. The cluster (13') is surrounded by an almost starless area between the inner cluster and the bright stars near the edges of the field. Outside this area the star density is almost as high as in the cluster.