(85182) 1991 AQ (provisional designation 1991 AQ) is a stony asteroid on a highly eccentric orbit, classified as near-Earth object and potentially hazardous asteroid of the Apollo group, approximately 1.1 kilometers (0.7 miles) in diameter.
It was discovered on 14 January 1991, by American astronomer Eleanor Helin at the Palomar Observatory in California.
The asteroids closest encounter with Earth is projected to occur on 27 January 2130, at a distance of 0.0106 AU (4.1 LD) only (see table).
[5] In the Tholen classification, this object is an uncommon Q-type asteroid, that falls into the larger stony S-complex.
[3] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.18 and derives a diameter of 1.14 kilometers based on an absolute magnitude of 17.20.