2148 Epeios

Infobox Planet | minorplanet = yes | width = 25em | bgcolour = #FFFFC0
name=2148 Epeios
discovery=yes
discovery_ref= [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html]
discoverer=Richard Martin West
discovered=October 24, 1976
designations = yes
alt_names=1976 UW
mp_category=Jupiter Trojan
orbit_ref= [ftp://ftp.lowell.edu/pub/elgb/astorb.html]
epoch=February 04, 2008 (JD 2454500.5)
semimajor=778.671 Gm (5.205 AU)
perihelion=733.664 Gm (4.904 AU)
aphelion=823.679 Gm (5.506 AU)
eccentricity=0.058
period=4337.522 d (11.88 a)
inclination=9.154°
asc_node=176.593°
arg_perihelion=230.778°
mean_anomaly=297.210°
avg_speed=13.04 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=11.1
albedo=0.10
single_temperature=~122 K

2148 Epeios 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 Epeius, who was a soldier during the Trojan War. It was discovered by Richard Martin West on October 24, 1976 at the La Silla Observatory in Chile. 2146 Stentor was also discovered the same day by West.

External links

* [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.txt Discovery Circumstances: Numbered Minor Planets]
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2148;orb=1 Orbital simulation] from JPL (Java) / [http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=2148 Ephemeris]