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- Kirkwood_gap abstract "A Kirkwood gap is a gap or dip in the distribution of the semi-major axes (or equivalently of the orbital periods) of the orbits of main-belt asteroids. They correspond to the locations of orbital resonances with Jupiter.For example, there are very few asteroids with semimajor axis near 2.50 AU, period 3.95 years, which would make three orbits for each orbit of Jupiter (hence, called the 3:1 orbital resonance). Other orbital resonances correspond to orbital periods whose lengths are simple fractions of Jupiter's. The weaker resonances lead only to a depletion of asteroids, while spikes in the histogram are often due to the presence of a prominent asteroid family.The gaps were first noticed in 1866 by Daniel Kirkwood, who also correctly explained their origin in the orbital resonances with Jupiter while a professor at Jefferson College in Canonsburg, Pennsylvania.Most of the Kirkwood gaps are depleted, unlike the mean-motion resonances (MMR) of Neptune or Jupiter's 3:2 resonance, due to the overlapping of the ν5 and ν6 secular resonances within the mean-motion resonances. The orbital elements of the asteroids vary chaotically as a result and evolve onto planet-crossing orbits within a few million years. The 2:1 MMR has a few relatively stable islands within the resonance, however. These islands are depleted due to slow diffusion onto less stable orbits. This process, which has been linked to Jupiter and Saturn being near a 5:2 resonance, may have been more rapid when Jupiter's and Saturn's orbits were closer together.More recently, a relatively small number of asteroids have been found to possess high eccentricity orbits which do lie within the Kirkwood gaps. Examples include the Alinda family and the Griqua family. These orbits slowly increase their eccentricity on a timescale of tens of millions of years, and will eventually break out of the resonance due to close encounters with a major planet.The most prominent Kirkwood gaps are located at mean orbital radii of: 2.06 AU (4:1 resonance) 2.5 AU (3:1 resonance), home to the Alinda family of asteroids 2.82 AU (5:2 resonance) 2.95 AU (7:3 resonance) 3.27 AU (2:1 resonance), home to the Griqua family of asteroids.Weaker and/or narrower gaps are also found at: 1.9 AU (9:2 resonance) 2.25 AU (7:2 resonance) 2.33 AU (10:3 resonance) 2.71 AU (8:3 resonance) 3.03 AU (9:4 resonance) 3.075 AU (11:5 resonance) 3.47 AU (11:6 resonance) 3.7 AU (5:3 resonance).↑ ↑ ↑".
- Kirkwood_gap thumbnail Kirkwood_Gaps.svg?width=300.
- Kirkwood_gap wikiPageExternalLink KirkwoodGaps.html.
- Kirkwood_gap wikiPageID "52839".
- Kirkwood_gap wikiPageLength "4505".
- Kirkwood_gap wikiPageOutDegree "25".
- Kirkwood_gap wikiPageRevisionID "707323716".
- Kirkwood_gap wikiPageWikiLink Alinda_family.
- Kirkwood_gap wikiPageWikiLink Asteroid.
- Kirkwood_gap wikiPageWikiLink Asteroid_belt.
- Kirkwood_gap wikiPageWikiLink Asteroid_family.
- Kirkwood_gap wikiPageWikiLink Astronomical_unit.
- Kirkwood_gap wikiPageWikiLink Canonsburg,_Pennsylvania.
- Kirkwood_gap wikiPageWikiLink Category:Asteroids.
- Kirkwood_gap wikiPageWikiLink Category:Resonance_with_Jupiter.
- Kirkwood_gap wikiPageWikiLink Daniel_Kirkwood.
- Kirkwood_gap wikiPageWikiLink Griqua_family.
- Kirkwood_gap wikiPageWikiLink Jupiter.
- Kirkwood_gap wikiPageWikiLink Orbital_eccentricity.
- Kirkwood_gap wikiPageWikiLink Orbital_period.
- Kirkwood_gap wikiPageWikiLink Orbital_resonance.
- Kirkwood_gap wikiPageWikiLink Semi-major_axis.
- Kirkwood_gap wikiPageWikiLink Washington_&_Jefferson_College.
- Kirkwood_gap wikiPageWikiLink File:Kirkwood_Gaps.svg.
- Kirkwood_gap wikiPageWikiLink File:Kirkwood_gaps_-_distances_and_resonances.png.
- Kirkwood_gap wikiPageWikiLinkText "Kirkwood Gaps".
- Kirkwood_gap wikiPageWikiLinkText "Kirkwood gap".
- Kirkwood_gap wikiPageWikiLinkText "gaps".
- Kirkwood_gap wikiPageUsesTemplate Template:Asteroids.
- Kirkwood_gap wikiPageUsesTemplate Template:Citation_needed.
- Kirkwood_gap wikiPageUsesTemplate Template:Commons_category.
- Kirkwood_gap wikiPageUsesTemplate Template:One_source.
- Kirkwood_gap wikiPageUsesTemplate Template:Reflist.
- Kirkwood_gap subject Category:Asteroids.
- Kirkwood_gap subject Category:Resonance_with_Jupiter.
- Kirkwood_gap hypernym Gap.
- Kirkwood_gap type MountainPass.
- Kirkwood_gap type Redirect.
- Kirkwood_gap comment "A Kirkwood gap is a gap or dip in the distribution of the semi-major axes (or equivalently of the orbital periods) of the orbits of main-belt asteroids. They correspond to the locations of orbital resonances with Jupiter.For example, there are very few asteroids with semimajor axis near 2.50 AU, period 3.95 years, which would make three orbits for each orbit of Jupiter (hence, called the 3:1 orbital resonance).".
- Kirkwood_gap label "Kirkwood gap".
- Kirkwood_gap sameAs Q318541.
- Kirkwood_gap sameAs فجوة_كيركوود.
- Kirkwood_gap sameAs Шчыліны_Кірквуда.
- Kirkwood_gap sameAs Llacuna_de_Kirkwood.
- Kirkwood_gap sameAs Kirkwoodova_mezera.
- Kirkwood_gap sameAs Kirkwoodlücke.
- Kirkwood_gap sameAs Malpleno_de_Kirkwood.
- Kirkwood_gap sameAs Huecos_de_Kirkwood.
- Kirkwood_gap sameAs Kirkwooden_hutsuneak.
- Kirkwood_gap sameAs شکاف_کرکوود.
- Kirkwood_gap sameAs Kirkwoodin_aukko.
- Kirkwood_gap sameAs Lacune_de_Kirkwood.
- Kirkwood_gap sameAs Kirkwoodove_zone.
- Kirkwood_gap sameAs Կիրկվուդի_ճեղքեր.
- Kirkwood_gap sameAs Lacune_di_Kirkwood.
- Kirkwood_gap sameAs カークウッドの空隙.
- Kirkwood_gap sameAs 커크우드_간극.
- Kirkwood_gap sameAs Kirkwood-Fräiraum.
- Kirkwood_gap sameAs Kirkwoodscheiding.
- Kirkwood_gap sameAs Kirkwoodgap.
- Kirkwood_gap sameAs Przerwy_Kirkwooda.
- Kirkwood_gap sameAs Lacunas_de_Kirkwood.
- Kirkwood_gap sameAs m.0dwk8.
- Kirkwood_gap sameAs Щели_Кирквуда.
- Kirkwood_gap sameAs Kirkwoodove_zone.
- Kirkwood_gap sameAs Kirkwood_gap.
- Kirkwood_gap sameAs Kirkwoodova_medzera.
- Kirkwood_gap sameAs Kirkwoodova_vrzel.
- Kirkwood_gap sameAs Kirkwoodgap.
- Kirkwood_gap sameAs ช่องว่างเคิร์กวูด.
- Kirkwood_gap sameAs Kirkwood_Boşlukları.
- Kirkwood_gap sameAs Люки_Кірквуда.
- Kirkwood_gap sameAs Q318541.
- Kirkwood_gap sameAs 柯克伍德空隙.
- Kirkwood_gap wasDerivedFrom Kirkwood_gap?oldid=707323716.
- Kirkwood_gap depiction Kirkwood_Gaps.svg.
- Kirkwood_gap isPrimaryTopicOf Kirkwood_gap.