Florence is a mid-sized asteroid whose orbit approaches the orbit of Earth but does not cross it. NASA JPL has classified Florence as a "Potentially Hazardous Asteroid" due to its predicted close pass(es) with Earth.
Florence orbits the sun every 859 days (2.35 years), coming as close as 1.02 AU and reaching as far as 2.52 AU from the sun. Florence is about 4.9 kilometers in diameter, making it larger than 99% of asteroids, comparable in size to the San Francisco Bay.
The rotation of Florence has been observed. It completes a rotation on its axis every 2.36 hours.
Florence's spectral type None (Tholen) / S (SMASSII) indicates that it is likely to contain and .
Florence's orbit is 0.04 AU from Earth's orbit at its closest point. This means that there is a wide berth between this asteroid and Earth at all times.
Florence has 4 close approaches predicted in the coming decades:
|Date||Distance from Earth (km)||Velocity (km/s)|
|Sept. 2, 2057||7,473,714||13.472|
|Sept. 11, 2097||23,312,940||12.991|
|Aug. 27, 2130||13,011,901||14.604|
|Aug. 28, 2170||11,687,858||14.496|
Florence's orbit is determined by observations dating back to March 9, 1979. It was last officially observed on Nov. 30, 2022. The IAU Minor Planet Center records 5,200 observations used to determine its orbit.
The position of Florence 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 Florence 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.