390725 (2003 HB) is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2003 HB as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
2003 HB orbits the sun every 286 days (0.78 years), coming as close as 0.53 AU and reaching as far as 1.17 AU from the sun. 2003 HB is about 0.3 kilometers in diameter, making it a small to average asteroid, comparable in size to a football field.
2003 HB's orbit is 0.05 AU from Earth's orbit at its closest point. This means that there is an wide berth between this asteroid and Earth at all times.
2003 HB has 17 close approaches predicted in the coming decades:
|Date||Distance from Earth (km)||Velocity (km/s)|
|May 25, 2025||7,028,518||13.466|
|May 18, 2036||29,830,450||18.754|
|May 27, 2043||14,578,911||11.810|
|May 22, 2054||17,462,548||16.371|
|May 23, 2061||26,615,520||10.484|
|May 24, 2072||7,215,001||14.075|
|May 26, 2090||11,751,607||12.240|
|May 23, 2101||17,914,877||16.476|
|May 24, 2108||27,870,804||10.395|
|May 27, 2119||6,677,465||13.508|
|May 21, 2130||27,338,795||18.260|
|May 27, 2137||18,147,171||11.316|
|May 24, 2148||12,702,915||15.447|
|May 27, 2166||6,633,133||13.448|
|May 21, 2177||28,366,167||18.471|
|May 27, 2184||17,229,083||11.424|
|May 25, 2195||11,770,112||15.278|
2003 HB's orbit is determined by observations dating back to April 21, 2003. It was last officially observed on May 16, 2021. The IAU Minor Planet Center records 275 observations used to determine its orbit.
The position of 390725 (2003 HB) 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 below comparison is an artistic rendering that uses available data on the diameter of 2003 HB to create an approximate landscape rendering with New York City in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.