(709487) 2013 BL76 is a trans-Neptunian object and centaur[4] from the scattered disk and Inner Oort cloud approximately 30 kilometers in diameter.
Using an epoch of February 2017, it is the minor planet with the 5th largest heliocentric semi-major axis in the Solar System (larger ones include 2014 FE72, 2012 DR30, and 2005 VX3).
With an absolute magnitude (H) of 10.8[5] and an unknown albedo, the object has an estimated diameter of 15–40 km.
It might also be a damocloid, a type of minor planet that was originally a comet but lost most of its near-surface volatile materials after numerous orbits around the Sun.
After leaving the planetary region of the Solar System, 2013 BL76 will have a barycentric aphelion of 1920 AU with an orbital period of 29900 years.