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- Hirayama_family abstract "A Hirayama family of asteroids is a group of minor planets that share similar orbital elements, such as semimajor axis, eccentricity, and orbital inclination. The members of the families are thought to be fragments of past asteroid collisions. Strictly speaking, families and their membership are identified by analysing the so-called proper orbital elements rather than the current osculating orbital elements, which regularly fluctuate on timescales of tens of thousands of years. The proper elements are related constants of motion that are thought to remain almost constant for times of at least tens of millions of years. The Japanese astronomer Kiyotsugu Hirayama (1874–1943) pioneered the estimation of proper elements for asteroids, and first identified several of the most prominent families in 1918 [1].Kiyotsugu Hirayama initially identified the Koronis, Eos, and Themis families, and later recognized also the Flora and Maria families. A list of the recognized families can be found here.".
- Hirayama_family wikiPageExternalLink Hirayama_family.html.
- Hirayama_family wikiPageID "1443842".
- Hirayama_family wikiPageLength "1335".
- Hirayama_family wikiPageOutDegree "19".
- Hirayama_family wikiPageRevisionID "540523623".
- Hirayama_family wikiPageWikiLink Asteroid.
- Hirayama_family wikiPageWikiLink Asteroid_family.
- Hirayama_family wikiPageWikiLink Astronomer.
- Hirayama_family wikiPageWikiLink Category:Asteroid_groups_and_families.
- Hirayama_family wikiPageWikiLink Eos_family.
- Hirayama_family wikiPageWikiLink Flora_family.
- Hirayama_family wikiPageWikiLink Japan.
- Hirayama_family wikiPageWikiLink Kiyotsugu_Hirayama.
- Hirayama_family wikiPageWikiLink Koronis_family.
- Hirayama_family wikiPageWikiLink Maria_family.
- Hirayama_family wikiPageWikiLink Minor_planet.
- Hirayama_family wikiPageWikiLink Orbital_eccentricity.
- Hirayama_family wikiPageWikiLink Orbital_elements.
- Hirayama_family wikiPageWikiLink Orbital_inclination.
- Hirayama_family wikiPageWikiLink Osculating_orbit.
- Hirayama_family wikiPageWikiLink Proper_orbital_elements.
- Hirayama_family wikiPageWikiLink Semi-major_axis.
- Hirayama_family wikiPageWikiLink Themis_family.
- Hirayama_family wikiPageWikiLinkText "Hirayama family".
- Hirayama_family wikiPageUsesTemplate Template:Asteroid-stub.
- Hirayama_family subject Category:Asteroid_groups_and_families.
- Hirayama_family hypernym Group.
- Hirayama_family type Band.
- Hirayama_family type Group.
- Hirayama_family type Group.
- Hirayama_family comment "A Hirayama family of asteroids is a group of minor planets that share similar orbital elements, such as semimajor axis, eccentricity, and orbital inclination. The members of the families are thought to be fragments of past asteroid collisions. Strictly speaking, families and their membership are identified by analysing the so-called proper orbital elements rather than the current osculating orbital elements, which regularly fluctuate on timescales of tens of thousands of years.".
- Hirayama_family label "Hirayama family".
- Hirayama_family sameAs Q1309405.
- Hirayama_family sameAs Famxc3xadlies_dHirayama.
- Hirayama_family sameAs Hirayama-Familie.
- Hirayama_family sameAs Famille_de_Hirayama.
- Hirayama_family sameAs משפחת_היראיאמה.
- Hirayama_family sameAs Hirajamine_obitelji.
- Hirayama_family sameAs Խիրայամայի_ընտանիք.
- Hirayama_family sameAs Hirayama-Famill.
- Hirayama_family sameAs Família_Hirayama.
- Hirayama_family sameAs m.0521pm.
- Hirayama_family sameAs Семейство_Хираямы.
- Hirayama_family sameAs Družina_Hirajama.
- Hirayama_family sameAs Q1309405.
- Hirayama_family sameAs 平山族.
- Hirayama_family wasDerivedFrom Hirayama_family?oldid=540523623.
- Hirayama_family isPrimaryTopicOf Hirayama_family.