Rio de Janeiro is a mid-sized asteroid orbiting between Mars and Jupiter in the main portion of the asteroid belt. NASA JPL has not classified Rio de Janeiro as potentially hazardous because its orbit does not bring it close to Earth.
Rio de Janeiro orbits the sun every 1,510 days (4.13 years), coming as close as 2.17 AU and reaching as far as 2.99 AU from the sun. Based on its brightness and the way it reflects light, Rio de Janeiro is probably between 4.927 to 11.016 kilometers in diameter, making it larger than 99% of asteroids, very roughly comparable in size to the San Francisco Bay.
Rio de Janeiro's orbit is 1.22 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.
Rio de Janeiro's orbit is determined by observations dating back to March 22, 1979. It was last officially observed on April 2, 2023. The IAU Minor Planet Center records 2,674 observations used to determine its orbit.
The position of Rio de Janeiro 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 above comparison is an artistic rendering that uses available data on the diameter of Rio de Janeiro to create an approximate landscape rendering with Mount Everest in the background. This approximation is built for full-resolution desktop browsers. Shape, color, and texture of asteroid are imagined.