4587 Rees

Infobox Planet | minorplanet = yes | width = 25em | bgcolour = #FFFFC0
name=4587 Rees
discovery=yes
discovery_ref= [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html]
discoverer= C. J. van Houten, I. van Houten-Groeneveld and T. Gehrels
discovered=September 30, 1973
alt_names=3239 T-2
mp_category=Amor
orbit_ref= [ftp://ftp.lowell.edu/pub/elgb/astorb.html]
epoch=February 04, 2008 (JD 2454500.5)
semimajor=396.856 Gm (2.653 AU)
perihelion=193.687 Gm (1.295 AU)
aphelion=600.024 Gm (4.011 AU)
eccentricity=0.512
period=1578.189 d (4.32 a)
inclination=24.641°
asc_node=180.646°
arg_perihelion=83.785°
mean_anomaly=19.001°
avg_speed=17.02 km/s
physical_characteristics=yes
dimensions=? km
mass=?e|? kg
density=? g/cm³
surface_grav=? m/s²
escape_velocity=? km/s
sidereal_day=0.32453 d (7.7886 h)cite web |url= http://earn.dlr.de/nea/table1_new.html |title= Physical parameters of NEOs |accessdate= 2007-12-08 |format= html |work= European Asteroid Research Node ]
axial_tilt=?° | pole_ecliptic_lat=? | pole_ecliptic_lon=?
spectral_type=?
abs_magnitude=15.6
albedo=0.10?
single_temperature=~171 K

4587 Rees is an Amor asteroid discovered on September 30, 1973 at the Palomar Observatory by C. J. van Houten, I. van Houten-Groeneveld and T. Gehrels. [cite web |url= http://cfa-www.harvard.edu/iau/lists/NumberedMPs000001.html |title= Discovery Circumstances: Numbered Minor Planets (1)-(5000) |accessdate= 2007-12-08 |format= html |work= IAU: Minor Planet Center ] The Provisional designation given to 4587 Rees was 3239 T-2. It has a rotation period 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. [cite book |last= Schmadel |first= L. D. |authorlink= L. D. Schmadel |title= The Dictionary of Minor Planet Names |publisher= Springer Science+Business Media |year= 2003 |location= Germany |edition= 5th edition |isbn= 3540002383 ]

Rees sometimes makes close approaches to Mars. In 2072 it will pass about 21 Gm from the Red Planet, the closest since the 1843 16 Gm one.

External links

* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=4587;orb=1 Rees in JPL Small-Body Database]
* [http://newton.dm.unipi.it/cgi-bin/neodys/neoibo?objects:Rees;main Near Earth Objects-Dynamic Site entry]

References