4587 Rees
Encyclopedia
4587 Rees is an Amor asteroid
Amor asteroid
The Amor asteroids are a group of near-Earth asteroids named after the asteroid 1221 Amor. They approach the orbit of the Earth from beyond, but do not cross it. Most Amors do cross the orbit of Mars...

 discovered on September 30, 1973 at the Palomar Observatory
Palomar Observatory
Palomar Observatory is a privately owned observatory located in San Diego County, California, southeast of Pasadena's Mount Wilson Observatory, in the Palomar Mountain Range. At approximately elevation, it is owned and operated by the California Institute of Technology...

 by Cornelis Johannes van Houten
Cornelis Johannes van Houten
Cornelis Johannes van Houten was a Dutch astronomer, sometimes referred to as Kees van Houten.Born in The Hague, he spent his entire career at Leiden University except for a brief period as research assistant at Yerkes Observatory...

, Ingrid van Houten-Groeneveld
Ingrid van Houten-Groeneveld
Ingrid van Houten-Groeneveld is a Dutch astronomer.In a jointly-credited trio with Tom Gehrels and her husband Cornelis Johannes van Houten, she was an extremely prolific discoverer of many thousands of asteroids...

 and Tom Gehrels
Tom Gehrels
Tom Gehrels , was an American astronomer, Professor Planetary Sciences, and Astronomer at the University of Arizona, Tucson....

. The Provisional designation given to 4587 Rees was 3239 T-2. It has a rotation period
Rotation period
The rotation period of an astronomical object is the time it takes to complete one revolution around its axis of rotation relative to the background stars...

 of 7.7886 hours. 4587 Rees was named in honor of Sir Martin Rees. Naming it after Martin Rees was proposed by Jan Hendrik Oort.

In 2072 Rees will pass about 21 Gm from Mars, the closest since it passed 16 Gm away in 1843.

External links

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