|
2146 Stentor
2146 Stentor /ˈstɛntər/ is a Jupiter trojan from the Greek camp, approximately 51 kilometers (32 miles) in diameter. It was discovered on 24 October 1976, by Danish astronomer Richard Martin West at the ESO's La Silla Observatory in Chile.[1] The dark Jovian asteroid has a rotation period of 16.4 hours and belongs to the 100 largest Jupiter trojans.[7] It was named after Stentor from Greek mythology, a Herald of the Greeks during the Trojan War.[1] Orbit and classificationStentor is a Jovian asteroid orbiting in the leading Greek camp at Jupiter's L4 Lagrangian point, 60° ahead of the gas giant's orbit in a 1:1 resonance .[4] It is a non-family asteroid in the Jovian background population.[5] It orbits the Sun at a distance of 4.7–5.7 AU once every 11 years and 10 months (4,327 days; semi-major axis of 5.2 AU). Its orbit has an eccentricity of 0.10 and an inclination of 39° with respect to the ecliptic.[3] The body's observation arc begins with its official discovery observation at La Silla in October 1976.[1] Physical characteristicsStentor is an assumed C-type asteroid.[7] Rotation periodIn June 2016, a rotational lightcurve of Stentor was obtained from photometric observations by Brian Warner at the Center for Solar System Studies (CS3) in California. Lightcurve analysis gave a rotation period of 16.40±0.02 hours with a brightness amplitude of 0.10 magnitude (U=2). An alternative period solution (1:1.5 alias of 24.88 was also obtained.[7][8][a] Stentor was previously observed at CS3 by Daniel Coley and Robert Stephens in February 2013, gave an alternative period solution of 35.14±0.02 hours with an amplitude of 0.09 magnitude. This approximately a 1:2 alias is now superseded by the shorter period above (U=2).[9] Diameter and albedoAccording to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Stentor measures 50.76 kilometers in diameter and its surface has an albedo 0.082,[6] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 58.29 kilometers based on an absolute magnitude of 9.9.[7]
100+ largest Jupiter trojans
NamingThis minor planet was named from Greek mythology after Stentor, the Greek warrior and herald with a voice as loud as fifty men together.[1] The official naming citation was published by the Minor Planet Center on 1 July 1979 (M.P.C. 4788).[10] Notes
References
External links
|
|||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||||
Index:
pl ar de en es fr it arz nl ja pt ceb sv uk vi war zh ru af ast az bg zh-min-nan bn be ca cs cy da et el eo eu fa gl ko hi hr id he ka la lv lt hu mk ms min no nn ce uz kk ro simple sk sl sr sh fi ta tt th tg azb tr ur zh-yue hy my ace als am an hyw ban bjn map-bms ba be-tarask bcl bpy bar bs br cv nv eml hif fo fy ga gd gu hak ha hsb io ig ilo ia ie os is jv kn ht ku ckb ky mrj lb lij li lmo mai mg ml zh-classical mr xmf mzn cdo mn nap new ne frr oc mhr or as pa pnb ps pms nds crh qu sa sah sco sq scn si sd szl su sw tl shn te bug vec vo wa wuu yi yo diq bat-smg zu lad kbd ang smn ab roa-rup frp arc gn av ay bh bi bo bxr cbk-zam co za dag ary se pdc dv dsb myv ext fur gv gag inh ki glk gan guw xal haw rw kbp pam csb kw km kv koi kg gom ks gcr lo lbe ltg lez nia ln jbo lg mt mi tw mwl mdf mnw nqo fj nah na nds-nl nrm nov om pi pag pap pfl pcd krc kaa ksh rm rue sm sat sc trv stq nso sn cu so srn kab roa-tara tet tpi to chr tum tk tyv udm ug vep fiu-vro vls wo xh zea ty ak bm ch ny ee ff got iu ik kl mad cr pih ami pwn pnt dz rmy rn sg st tn ss ti din chy ts kcg ve
Portal di Ensiklopedia Dunia
