108 Hecuba References External links Navigation menu"108 Hecuba""Archived copy"the original2002Icar..158...98K10.1006/icar.2002.6837"Lightcurve Derived Data""An extension of the Bus asteroid taxonomy into the near-infrared"2009Icar..202..160D10.1016/j.icarus.2009.02.005the original"Numbered Minor Planets 1–5000"2005MNRAS.359.1437B10.1111/j.1365-2966.2005.08995.x1948AJ.....53..199M10.1086/106097"An extension of the Bus asteroid taxonomy into the near-infrared"2009Icar..202..160D10.1016/j.icarus.2009.02.005the original2007MPBu...34...72WLightcurve plot of 108 HecubaAsteroid Lightcurve Database (LCDB)infoDictionary of Minor Planet NamesAsteroids and comets rotation curves, CdRDiscovery Circumstances: Numbered Minor Planets (1)-(5000)108 HecubaEphemerisObservation predictionOrbital infoProper elementsObservational info108 HecubaClose approachDiscoveryEphemerisOrbit diagramOrbital elementsPhysical parametersee4159348-0235081912235081912expanding ite

107 Camilla 108 Hecuba109 Felicitas


Minor planet object articles (numbered)Hygiea asteroidsDiscoveries by Robert LutherMinor planets named from Greek mythologyNamed minor planetsS-type asteroids (Tholen)Sl-type asteroids (SMASS)Astronomical objects discovered in 1869S-type main-belt-asteroid stubs


minor planet designationmain-beltasteroidKarl Theodor Robert LutherHecubaPriamTrojan Warmean-motion resonanceJupiterTholen classificationS-type asteroidasteroid taxonomyColorado Springs, Coloradolight curvemagnitudeHygiea familysilicateC-type asteroids

































































108 Hecuba
Discovery
Discovered byR. Luther
Discovery date2 April 1869
Designations
MPC designation(108) Hecuba
Pronunciation/ˈhɛkjʊbə/
Named after
Hecuba
Minor planet category
Main belt

Orbital characteristics[1]

Epoch 31 July 2016 (JD 2457600.5)

Uncertainty parameter 0
Observation arc135.87 yr (49628 d)
Aphelion3.4190 AU (511.48 Gm)
Perihelion3.05922 AU (457.653 Gm)
Semi-major axis
3.23912 AU (484.565 Gm)
Eccentricity0.055539
Orbital period
5.83 yr (2129.3 d)
Average orbital speed
16.53 km/s
Mean anomaly
166.649°
Mean motion
0° 10m 8.648s / day
Inclination4.2204°
Longitude of ascending node
350.014°
Argument of perihelion
204.634°
Earth MOID
2.05833 AU (307.922 Gm)
Jupiter MOID
1.55152 AU (232.104 Gm)
TJupiter3.178

Physical characteristics
Dimensions
7004649700000000000♠64.97±4.4 km[1]
65 km[2]
Mass~3.9×1017 kg (estimate)
Mean density
~2.7 g/cm³ (estimate)[3]
Equatorial surface gravity
~0.025 m/s² (estimate)
Equatorial escape velocity
~0.040 km/s (estimate)
Rotation period
14.256 h (0.5940 d)[1]
0.60 d or 1.20 d[4]
Geometric albedo
6999243100000000000♠0.2431±0.037












Surface temp.
minmeanmax
Kelvin~148215
Celsius-58
Spectral type

S[5]
Absolute magnitude (H)
8.09

Hecuba (minor planet designation: 108 Hecuba) is a fairly large and bright main-belt asteroid. It was discovered by Karl Theodor Robert Luther on April 2, 1869,[6] and named after Hecuba, wife of King Priam in the legends of the Trojan War in Greek Mythology. It became the first asteroid discovered to orbit near a 2:1 mean-motion resonance with the planet Jupiter,[7] and is the namesake of the Hecuba group of asteroids.[8]


In the Tholen classification system, it is categorized as a stony S-type asteroid, while the Bus asteroid taxonomy system lists it as an Sw asteroid.[9] Observations performed at the Palmer Divide Observatory in Colorado Springs, Colorado in during 2007 produced a light curve with a period of 17.859 ± 0.005 hours with a brightness variation of 0.11 ± 0.02 in magnitude.[10]


Hecuba orbits within the Hygiea family of asteroids but is not otherwise related to other family members because it has a silicate composition; Hygieas are dark C-type asteroids.



References




  1. ^ abc Yeomans, Donald K., "108 Hecuba", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016..mw-parser-output cite.citationfont-style:inherit.mw-parser-output .citation qquotes:"""""""'""'".mw-parser-output .citation .cs1-lock-free abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/6/65/Lock-green.svg/9px-Lock-green.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-limited a,.mw-parser-output .citation .cs1-lock-registration abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/d/d6/Lock-gray-alt-2.svg/9px-Lock-gray-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .citation .cs1-lock-subscription abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/a/aa/Lock-red-alt-2.svg/9px-Lock-red-alt-2.svg.png")no-repeat;background-position:right .1em center.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registrationcolor:#555.mw-parser-output .cs1-subscription span,.mw-parser-output .cs1-registration spanborder-bottom:1px dotted;cursor:help.mw-parser-output .cs1-ws-icon abackground:url("//upload.wikimedia.org/wikipedia/commons/thumb/4/4c/Wikisource-logo.svg/12px-Wikisource-logo.svg.png")no-repeat;background-position:right .1em center.mw-parser-output code.cs1-codecolor:inherit;background:inherit;border:inherit;padding:inherit.mw-parser-output .cs1-hidden-errordisplay:none;font-size:100%.mw-parser-output .cs1-visible-errorfont-size:100%.mw-parser-output .cs1-maintdisplay:none;color:#33aa33;margin-left:0.3em.mw-parser-output .cs1-subscription,.mw-parser-output .cs1-registration,.mw-parser-output .cs1-formatfont-size:95%.mw-parser-output .cs1-kern-left,.mw-parser-output .cs1-kern-wl-leftpadding-left:0.2em.mw-parser-output .cs1-kern-right,.mw-parser-output .cs1-kern-wl-rightpadding-right:0.2em


  2. ^ "Archived copy". Archived from the original on 2005-12-22. Retrieved 2005-12-11.CS1 maint: Archived copy as title (link)


  3. ^ Krasinsky, G. A.; et al. (July 2002), "Hidden Mass in the Asteroid Belt", Icarus, 158 (1): 98–105, Bibcode:2002Icar..158...98K, doi:10.1006/icar.2002.6837. See appendix A.


  4. ^ Harris, A.W.; Warner, B.D.; Pravec, P., eds. (2012), "Lightcurve Derived Data", Planetary Data System, NASA, retrieved 2013-03-22.


  5. ^ DeMeo, Francesca E.; et al. (2011), "An extension of the Bus asteroid taxonomy into the near-infrared" (PDF), Icarus, 202 (1): 160–180, Bibcode:2009Icar..202..160D, doi:10.1016/j.icarus.2009.02.005, archived from the original (PDF) on 2014-03-17. See appendix A.


  6. ^ "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 2013-04-07.


  7. ^ Brož, M.; Vokrouhlický, D.; Roig, F.; Nesvorný, D.; Bottke, W. F.; Morbidelli, A. (June 2005), "Yarkovsky origin of the unstable asteroids in the 2/1 mean motion resonance with Jupiter", Monthly Notices of the Royal Astronomical Society, 359 (4), Bibcode:2005MNRAS.359.1437B, doi:10.1111/j.1365-2966.2005.08995.x.


  8. ^ McDonald, Sophia Levy (June 1948), "General perturbations and mean elements, with representations of 35 minor planets of the Hecuba group", Astronomical Journal, 53, p. 199, Bibcode:1948AJ.....53..199M, doi:10.1086/106097.


  9. ^ DeMeo, Francesca E.; et al. (July 2009), "An extension of the Bus asteroid taxonomy into the near-infrared" (PDF), Icarus, 202 (1), pp. 160–180, Bibcode:2009Icar..202..160D, doi:10.1016/j.icarus.2009.02.005, archived from the original (PDF) on 2014-03-17, retrieved 2013-04-08. See appendix A.


  10. ^ Warner, Brian D. (September 2007), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory", The Minor Planet Bulletin, Bibcode:2007MPBu...34...72W.




External links



  • Lightcurve plot of 108 Hecuba, Palmer Divide Observatory, B. D. Warner (2007)


  • Asteroid Lightcurve Database (LCDB), query form (info)


  • Dictionary of Minor Planet Names, Google books


  • Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend


  • Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center


  • 108 Hecuba at AstDyS-2, Asteroids—Dynamic Site

    • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info


  • 108 Hecuba at the JPL Small-Body Database Edit this at Wikidata

    • Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters









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