This little spiral galaxy is hiding in central Virgo. It's located 3.4 degrees west-southwest of 3.4 magnitude Auva, Delta (43) Virginis. As rendered in the sketch at left, NGC 4643's 10.7 magnitude glow is spread across a 2' diameter area. An 11.4 magnitude GSC star is visible 2'.2 to the northwest. HD 110644, an 8.7 magnitude star, sits 11' due north of NGC 4643. Another 14 field stars were recording during the observation, which was made with the 10-inch Starfinder at 82X. NGC 4636 resides just 43' to the north.