Object: Galaxy NGC 3900 Constell: LEO RA: 11h 49.1m Decl: +27° 01' Epoch: 2000 Mag: 11.3m (v) Size: 3.2'x1.7' Type: SA(r)0+ Observer: Jere Kahanpää Obs. place: Hartola, Finland Date/Time: 7./8.4.1996, 23.05 Telescope: N 205/1000 Magn: 133x Filter: Field: 22' NE Lim.mag: 6.2m Background sky: 2 Seeing: 2 Weather: 0 °C, no Moon. Brightness: 3 Alt: Description: Size 3'x2'. A faint disk, moderately concentrated towards a faint (13.5m) stellar nucleus.