2015 BY81 is a mid-sized asteroid that orbits between Mars and Jupiter in the outer reaches of the main asteroid belt. NASA JPL has not classified 2015 BY81 as potentially hazardous because its orbit does not bring it close to Earth.
2015 BY81 orbits the sun every 3,300 days (9.03 years), coming as close as 2.16 AU and reaching as far as 6.51 AU from the sun. Based on its brightness and the way it reflects light, 2015 BY81 is probably between 1.171 to 2.618 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. Pentagon.
Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.
2015 BY81's orbit is determined by observations dating back to Jan. 18, 2015. It was last officially observed on Jan. 20, 2015. The IAU Minor Planet Center records 11 observations used to determine its orbit.
The position of 2015 BY81 is indicated by a ◯ pink circle. Note that the object may not be in your current field of view. Use the controls below to adjust position, location, and time.
The above comparison is an artistic rendering that uses available data on the diameter of 2015 BY81 to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.