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Lydia Family
The Padua family (FIN: FIN tbl#507, 507), also known as the Lydia family, is a mid-sized family of asteroids of more than a thousand members. The family is at least 25 million years old. Its members were previously associated to 110 Lydia, and are predominantly X-type asteroid, X-type asteroids with an Astronomical albedo, albedo of approximately 0.1. Together with the Agnia family, the Padua family is the only other family to have most of its members in a nonlinear secular resonance configuration with more than 75% of its members in a z1 librating state. The Paduan (Lydian) asteroids are located in the Kirkwood gap, outer part of the central asteroid belt having a semi-major axis of approximately 2.75. The family's namesake is the asteroid 363 Padua, while 110 Lydia is now a suspected Interloper (asteroid), interloper, despite having the same spectral type. Members Some prominent members with known spectral type. A list of all Paduan aststeroids is given at the " ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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An asteroid family is a population of asteroids that share similar proper orbital elements, such as semimajor axis, eccentricity, and orbital inclination. The members of the families are thought to be fragments of past asteroid collisions. An asteroid family is a more specific term than asteroid group whose members, while sharing some broad orbital characteristics, may be otherwise unrelated to each other. General properties Large prominent families contain several hundred recognized asteroids (and many more smaller objects which may be either not-yet-analyzed, or not-yet-discovered). Small, compact families may have only about ten identified members. About 33% to 35% of asteroids in the main belt are family members. There are about 20 to 30 reliably recognized families, with several tens of less certain groupings. Most asteroid families are found in the main asteroid belt, although several family-like groups such as the Pallas family, Hungaria family, and the Phocaea family ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
