1869 Philoctetes


1869 Philoctetes

Infobox Planet | minorplanet = yes | width = 25em | bgcolour = #FFFFC0
name=1869 Philoctetes
discovery=yes
discovery_ref= [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html]
discoverer=Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels
discovered=September 24, 1960
designations = yes
alt_names= 4596 P-L
mp_category=Jupiter Trojan
orbit_ref= [ftp://ftp.lowell.edu/pub/elgb/astorb.html]
epoch=February 04, 2008 (JD 2454500.5)
semimajor=787.901 Gm (5.267 AU)
perihelion=734.687 Gm (4.911 AU)
aphelion=841.116 Gm (5.623 AU)
eccentricity=0.068
period=4414.873 d (12.09 a)
inclination=3.967°
asc_node=44.139°
arg_perihelion=323.145°
mean_anomaly=317.620°
avg_speed=12.96 km/s
physical_characteristics=yes
dimensions=? km
mass=?e|? kg
density=? g/cm³
surface_grav=? m/s²
escape_velocity=? km/s
sidereal_day=? d
axial_tilt=?° | pole_ecliptic_lat=? | pole_ecliptic_lon=?
spectral_type=?
abs_magnitude=11.0
albedo=0.10
single_temperature=~121 K

1869 Philoctetes is a Jupiter trojan asteroid that orbits in the L4 Lagrangian point of the Sun-Jupiter system, in the "Greek Camp" of Trojan asteroids. It was named after the Greek hero Philoctetes, who fought during the Trojan War. It was discovered by Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels on September 24, 1960 in Palomar, California at the Palomar Observatory. 1868 Thersites was also discovered the same day by the same group.

External links

* [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.txt Discovery Circumstances: Numbered Minor Planets]
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1869;orb=1 Orbital simulation] from JPL (Java) / [http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=1869 Ephemeris]


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