2019 AC9 is a very small asteroid whose orbit crosses the orbit of Earth. NASA JPL has classified 2019 AC9 as a "Near Earth Asteroid" due to its orbit's proximity to Earth, but it is not considered potentially hazardous because computer simulations have not indicated any imminent likelihood of future collision.
2019 AC9 orbits the sun every 457 days (1.25 years), coming as close as 0.78 AU and reaching as far as 1.55 AU from the sun. Based on its brightness and the way it reflects light, 2019 AC9 is probably between 0.019 to 0.043 kilometers in diameter, making it a small to average asteroid, very roughly comparable in size to a school bus or smaller.
2019 AC9's orbit is 0.00 AU from Earth's orbit at its closest point. This means that its orbit is relatively close to Earth's orbit.
2019 AC9 has 8 close approaches predicted in the coming decades:
| Date | Distance from Earth (km) | Velocity (km/s) |
|---|---|---|
| Jan. 12, 2019 | 1,588,811 | 10.071 |
| Jan. 16, 2024 | 8,383,448 | 8.763 |
| June 25, 2064 | 15,150,529 | 7.601 |
| July 1, 2069 | 5,187,409 | 9.497 |
| July 3, 2074 | 2,991,584 | 10.508 |
| July 8, 2079 | 13,400,648 | 12.741 |
| July 12, 2084 | 27,073,127 | 15.372 |
| Jan. 7, 2118 | 18,957,767 | 13.993 |
2019 AC9's orbit is determined by observations dating back to Jan. 10, 2019. It was last officially observed on Jan. 12, 2019. The IAU Minor Planet Center records 30 observations used to determine its orbit.
The position of 2019 AC9 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.