Object: Galaxies NGC 4550 & -51 Constell: Vir RA: 12h 35.5m (-50) Decl: +12° 13' Epoch: 2000 Mag: 11.6m(v)/12.0m (v) Size: 3.3x0.9'/1.8x1.5' Type: SB0: sp/ E: Observer: Jere Kahanpää Obs. place: Hartola, Finland Date/Time: 10./11.4.1996, 01.10 Telescope: N 205/1000 Magn: 133x Filter: Field: 22' NE Lim.mag: 6.2m Background sky: 2 Seeing: 2 Weather: -4 °C, no Moon. Brightness: 3, 3 Alt: Description: NGC 4550: Moderately concentrated. About 1.6'x1.0'. PA 170°. No nucleus. The southern of 2. NGC 4551: A faint (14m) stellar nucleus. Round, diam. 1,2'. A bit concentrated towards the nucleus. 3.5' N of ngc 4550.