Difference between revisions 6120574 and 6120575 on simplewiki

{{Infobox planet
 | minorplanet = yes
 | width = 25em
 | bgcolour = #FFFFC0
 | name=2456 Palamedes
 | discovery=yes
 | discovery_ref=[http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html]
 | discoverer=[[Purple Mountain Observatory]]
 | discovered=January 30, 1966
 | designations = yes
 | alt_names=1966 BA1 
 | mp_category=[[Trojan asteroid|Jupiter Trojan]]
 | orbit_ref=[ftp://ftp.lowell.edu/pub/elgb/astorb.html]
 | epoch=February 4, 2008 ([[Julian day|JD]] 2454500.5)
 | semimajor=768.221 [[Giga|G]]m (5.135 [[Astronomical unit|AU]])
 | perihelion=710.392 Gm (4.749 AU)
 | aphelion=826.050 Gm (5.522 AU)
 | eccentricity=0.075
 | period=4250.496 [[day|d]] (11.64 [[Julian year (astronomy)|a]])
 | inclination=13.907[[degree (angle)|°]]
 | asc_node=327.408°
 | arg_perihelion=93.744°
 | mean_anomaly=272.936°
 | avg_speed=13.12 km/[[second|s]]
 | physical_characteristics=yes
 | dimensions=91.7 km
 | mass=8.1{{e|17}} kg
 | density=2.0 g/cm³
 | surface_grav=0.0256 m/s²
 | escape_velocity=0.0485 km/s
 | sidereal_day=
 | axial_tilt= | pole_ecliptic_lat= | pole_ecliptic_lon=
 | spectral_type=
 | abs_magnitude=9.6
 | albedo=0.10
 | single_temperature=~123 [[kelvin|K]]
}}
'''2456 Palamedes''' is a [[Jupiter Trojan]] asteroid that orbits in the {{L4}} [[Lagrangian point]] of the [[Sun]]-[[Jupiter]] system, in the [[List of Trojan asteroids (Greek camp)|"Greek Camp"]] of Trojan asteroids. It was named after the [[Ancient Greece|Greek]] hero [[Palamedes (Greek mythology)|Palamedes]]. It was discovered by the [[Purple Mountain Observatory]] in [[Nanjing]], [[China]] on January 30, 1966.

[[Photometry (astronomy)|Photometric]] observations of this asteroid during 1995 were used to build a [[light curve]] showing a [[rotation period]] of 7.258 ± 0.004hours with a brightness variation of 0.05 ± 0.01 [[Magnitude (astronomy)|magnitude]].<ref name="AJ141_5_170"/>

==References==
{{reflist|refs=
<ref name="AJ141_5_170">{{cite doi|10.1088.2F0004-6256.2F141.2F5.2F170}}</ref>
}}

==External links==
* [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.txt Discovery Circumstances: Numbered Minor Planets]
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2456;orb=1 Orbital simulation] from JPL (Java) / [http://ssd.jpl.nasa.gov/horizons.cgi?find_body=1&body_group=sb&sstr=2456 Ephemeris]

{{Minor planets navigator|2455 Somville|2457 Rublyov}}
{{Small Solar System bodies}}

{{DEFAULTSORT:Palamedes}}
[[Category:Jupiter Trojans (Greek camp)]]
[[Category:AsteroidMinor planets named from Greek mythology]]
[[Category:Astronomical objects discovered in 1966]]