Himawari is a mid-sized asteroid orbiting between Mars and Jupiter within the inner portion of the asteroid belt. NASA JPL has not classified Himawari as potentially hazardous because its orbit does not bring it close to Earth.
Himawari orbits the sun every 977 days (2.67 years), coming as close as 1.76 AU and reaching as far as 2.10 AU from the sun. Himawari is about 9.0 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.
The rotation of Himawari has been observed. It completes a rotation on its axis every 5.51 hours.
Himawari's orbit is 0.84 AU from Earth's orbit at its closest point. This means that there is a very 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.
Himawari's orbit is determined by observations dating back to Aug. 19, 1977. It was last officially observed on Sept. 13, 2022. The IAU Minor Planet Center records 2,087 observations used to determine its orbit.
The position of Himawari 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.