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A classical Kuiper belt object, also called a cubewano ( "QB1-o"), is a low-eccentricity Kuiper belt object (KBO) that orbits beyond Neptune and is not controlled by an orbital resonance with Neptune. Cubewanos have orbits with semi-major axes in the 40–50 AU range and, unlike Pluto, do not cross Neptune's orbit. That is, they have low-eccentricity and sometimes low-inclination orbits like the classical planets.
The Kuiper belt is a circumstellar disc in the outer Solar System, extending from the orbit of Neptune at 30 astronomical units (AU) to approximately 50 AU from the Sun. It is similar to the asteroid belt, but is far larger—20 times as wide and 20–200 times as massive. Like the asteroid belt, it consists mainly of small bodies or remnants from when the Solar System formed. While many asteroids are composed primarily of rock and metal, most Kuiper belt objects are composed largely of frozen volatiles, such as methane, ammonia, and water. The Kuiper belt is home to most of the objects that astronomers generally accept as dwarf planets: Orcus, Pluto, Haumea, Quaoar, and Makemake. Some of the Solar System's moons, such as Neptune's Triton and Saturn's Phoebe, may have originated in the region.
The scattered disc (or scattered disk) is a distant circumstellar disc in the Solar System that is sparsely populated by icy small Solar System bodies, which are a subset of the broader family of trans-Neptunian objects. The scattered-disc objects (SDOs) have orbital eccentricities ranging as high as 0.8, inclinations as high as 40°, and perihelia greater than 30 astronomical units (4.5×109 km; 2.8×109 mi). These extreme orbits are thought to be the result of gravitational "scattering" by the gas giants, and the objects continue to be subject to perturbation by the planet Neptune.
Femke Dekker is a Dutch rower from the Netherlands.
Annemiek de Haan is a rower from the Netherlands.
Nienke Kingma is a rower from the Netherlands.
Roline Repelaer van Driel is a rower from the Netherlands. She started rowing as a student, at U.S.R. "Triton" rowing club in Utrecht.
Annemarieke van Rumpt is a rower from the Netherlands.
Sarah Siegelaar is a rower from the Netherlands.
Marlies Smulders is a rower from the Netherlands.
Helen Tanger is a rower from the Netherlands.
Ester Workel is a rowing cox from the Netherlands.
Olaf van Andel is a rower from the Netherlands.
Rogier Blink is a Dutch rower.
Jozef Klaassen is a rower from the Netherlands.
Meindert Klem is a rower from the Netherlands.
Olivier Siegelaar is a rower from the Netherlands.
Mitchel Steenman is a Dutch rower.
Reinder Lubbers is a male rower from the Netherlands.
Peter Wiersum is a Dutch former rowing coxswain. He is a three-time Olympian and won a world championship title in 2007.
References
- 1 2 3 Athlete biography: David Kuiper, beijing2008.cn, ret: 14 August 2008
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