276770 (2004 HC) is a very small asteroid whose orbit could bring it in close proximity to Earth. NASA JPL has classified 2004 HC 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.
2004 HC orbits the sun every 256 days (0.70 years), coming as close as 0.32 AU and reaching as far as 1.26 AU from the sun. Based on its brightness and the way it reflects light, 2004 HC is probably between 0.278 to 0.622 kilometers in diameter, making it larger than 90% of asteroids but tiny compared to large asteroids, very roughly comparable in size to the U.S. Capitol building.
2004 HC's orbit is 0.09 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.
2004 HC has 21 close approaches predicted in the coming decades:
|Date||Distance from Earth (km)||Velocity (km/s)|
|April 18, 2023||29,398,750||24.609|
|April 19, 2030||22,744,275||23.071|
|April 20, 2037||17,384,486||21.698|
|April 20, 2044||14,356,686||20.531|
|April 21, 2051||14,416,954||19.527|
|April 20, 2058||17,060,847||18.738|
|April 19, 2065||21,109,638||18.075|
|April 17, 2072||25,656,283||17.627|
|April 19, 2098||26,067,235||23.803|
|April 21, 2105||20,300,135||22.420|
|April 21, 2112||16,059,117||21.213|
|April 22, 2119||14,232,405||20.085|
|April 22, 2126||15,533,133||19.152|
|April 21, 2133||19,227,522||18.353|
|April 19, 2140||24,040,579||17.779|
|April 18, 2147||29,081,885||17.373|
|April 21, 2166||22,645,106||22.964|
|April 22, 2173||16,393,388||21.233|
|April 22, 2180||14,464,877||19.833|
|April 22, 2187||17,504,583||18.681|
|April 20, 2194||23,155,248||17.886|
2004 HC's orbit is determined by observations dating back to April 16, 2004. It was last officially observed on May 8, 2018. The IAU Minor Planet Center records 208 observations used to determine its orbit.
The position of 276770 (2004 HC) 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 2004 HC 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.