Object: Open cluster DO 24 Constell: MON RA: 06h 44.2m Decl: +01° 36' Epoch: 2000 Mag: Size: 18' Type: IV 2 m Observer: Jere Kahanpää Obs. place: Helsinki, Finland Date/Time: 14./15.12.1996, 23.50 Telescope: C 200/2000 Magn: 80x Filter: Field: 37' NE Lim.mag: 5.5m Background sky: 4 Seeing: 2 Weather: -7 °C, no Moon. Brightness: 3 Alt: 2 Description: Suprisingly nice. About 25 stars mag. 10...13. Round. The stars are evenly distributed across the cluster.