91133 (1998 HK151) is a large asteroid whose orbit extends beyond the orbit of Neptune. NASA JPL has not classified 1998 HK151 as potentially hazardous because its orbit does not bring it close to Earth.
1998 HK151 orbits the sun every 90,100 days (246.68 years), coming as close as 30.44 AU and reaching as far as 48.24 AU from the sun. Based on its brightness and the way it reflects light, 1998 HK151 is probably between 79.534 to 177.844 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the U.S. state of Delaware.
1998 HK151's orbit is 29.40 AU from Earth's orbit at its closest point. This means that there is an extremely wide berth between this asteroid and Earth at all times.
Orbital simulations conducted by NASA JPL's CNEOS do not show any close approaches to Earth.
1998 HK151's orbit is determined by observations dating back to April 28, 1998. It was last officially observed on July 19, 2001. The IAU Minor Planet Center records 31 observations used to determine its orbit.
The position of 91133 (1998 HK151) 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.