QG 42

QG 42 is a near earth object, an asteroid, that made a relatively close approach to planet Earth on September 13, 2012. The asteroid's closest approach was 7.5 times the average distance between the Earth and the Moon.

The asteroid is much smaller than the extinction class asteroid scientists have theorized killed off the dinosaurs, but it is much larger than the objec that is believed to have caused the 1908 Tunguska event.

The object did not pose a threat during its 2012 approach, but it is listed as a "potentially hazardous asteroid".