Editing 624 Hektor (section)

{{Short description|Largest Jupiter trojan}}
{{Use dmy dates|date=June 2018}}
{{Infobox planet
 | minorplanet     = yes
 | name            = 624 Hektor
 | background      = #C2FFFF
 | image           = Hektor & Skamandrios 2006 Jul 16.PNG
 | image_scale      =
 | caption         = 624 Hektor and its moon Skamandrios
 | discovery_ref   = &thinsp;<ref name="MPC-object" />
 | discoverer      = [[August Kopff|A. Kopff]]
 | discovery_site  = [[Heidelberg Observatory|Heidelberg Obs.]]
 | discovered      = 10 February 1907
 | mpc_name        = (624) Hektor
 | alt_names       = 1907 XM; 1948 VD
 | pronounced      = {{IPAc-en|ˈ|h|ɛ|k|t|ər}}<ref name=OED>{{OED|Hector}}</ref>
 | adjectives      = Hektorean or Hektorian <br />(both {{IPAc-en|h|ɛ|k|ˈ|t|oʊr|i|ə|n}})<ref name=OED/>
 | named_after     = [[Hector]] {{small|(Greek mythology)}}<ref name="springer" />
 | mp_category     = {{nowrap|[[Jupiter trojan]]&thinsp;<ref name="MPC-object" /><ref name="jpldata" />{{·}}[[Hektor family|Hektor]]&thinsp;<ref name="Ferret" />}}<br />{{mpcat|Greeks}}<ref name="MPC-Jupiter-Trojans" />
 | orbit_ref       = &thinsp;<ref name="jpldata" />
 | epoch           = 23 March 2018 ([[Julian day|JD]] 2458200.5)
 | uncertainty     = 0
 | observation_arc = 111.28 [[Julian year (astronomy)|yr]] (40,646 d)
 | aphelion        = 5.3824 [[Astronomical unit|AU]]
 | perihelion      = 5.1319 AU
 | semimajor       = 5.2571 AU
 | eccentricity    = 0.0238
 | period          = 12.05 yr (4,403 d)
 | mean_anomaly    = 136.09[[Degree (angle)|°]]
 | mean_motion     = {{Deg2DMS|0.0818|sup=ms}} / day
 | inclination     = 18.166°
 | asc_node        = 342.79°
 | arg_peri        = 185.22°
 | jupiter_moid    = 0.2752 AU
 | tisserand       = 2.8990
 | satellites      = 1 
 | dimensions      = {{val|403|x|201|u=km}} {{small|(derived)}}<ref name="Marchis-2014" /><br />{{val|370|x|195|x|195|u=km}}<ref name="Storrs-1999" />
 | mean_diameter   = {{val|250|26|u=km}}<ref name="Marchis-2014" /><br />(<small>if bilobe:</small> {{val|256|12|u=km}})<ref name="Marchis-2014" /><br />{{val|225|u=km}}<ref name="jpldata" /><br />{{val|147|2|u=km}}<ref name="Grav-2012" /><br />{{val|227|15|u=km}}<ref name="Carry-2012" /><br />{{val|231|4|u=km}}<ref name="AKARI" />
 | mass            = {{val|7.9|1.4|e=18|u=kg}}<ref name="Marchis-2014" /><br />{{val|9.95|0.12|e=18|u=kg}}<ref name="Carry-2012"/>
 | density         = {{val|1.0|0.3|u=g/cm3}}<ref name="Marchis-2014" /><br />{{val|1.63|0.32|u=g/cm3}}<ref name="Carry-2012" /><br />{{val|2.43|0.35|u=g/cm3}}<ref name="Descamps-2015" />
 | rotation        = {{convert|6.9205|h|d}}<ref name="Marchis-2014" />
 | albedo          = 0.025<ref name="jpldata" /><br />{{val|0.034|0.001}}<ref name="AKARI" /><br />{{val|0.107|0.011}}<ref name="Grav-2012" />
 | angular_size    = 0.078"<!-- Horizons 1955-Mar-17 --> to 0.048"  {{citation needed|date=March 2018}}
 | spectral_type   = [[D-type asteroid|D]] {{small|([[Tholen classification|Tholen]])}}<ref name="jpldata" />
 | magnitude       = 13.79 <!-- Horizons 1955-Mar-17 --> to 15.26  {{citation needed|date=March 2018}}
 | abs_magnitude   = 7.20<ref name="Grav-2012" />{{·}}7.3<ref name="jpldata" />{{·}}7.49<ref name="AKARI" />
}}

'''624 Hektor''' {{IPAc-en|ˈ|h|ɛ|k|t|ər}} is the largest [[Jupiter trojan]] and the namesake of the [[Hektor family]], with a highly elongated shape equivalent in volume to a sphere of approximately 225 to 250 kilometers diameter. It was discovered on 10 February 1907, by astronomer [[August Kopff]] at [[Heidelberg Observatory]] in southwest Germany, and named after the Trojan prince [[Hector]], from Greek mythology.<ref name="MPC-object" /><ref name="springer" /> It has one small 12-kilometer sized [[Minor-planet moon|satellite]], [[#Satellite|Skamandrios]], discovered in 2006.<ref name="Marchis-2014" />