Quaoar (minor-planet designation: 50000 Quaoar) is a ringed dwarf planet in the Kuiper belt, a region of icy planetesimals beyond Neptune. It has an elongated ellipsoidal shape with an average diameter of 1,090 km (680 mi), about half the size of the dwarf planet Pluto.

2015年8月27日 · Quaoar has an orbital period of 284.5 years, and a sidereal rotation period of about 17.68 hours. Its orbit is also nearly circular and moderately inclined at approximately 8°, which is...

2014年5月9日 · Quaoar is a planetoid that lies beyond Pluto's orbit in the solar system. Its discovery in 2002, as well as subsequent discoveries of other small worlds, led to a new …

2023年2月8日 · Quaoar is an icy body about half the size of Pluto that’s located in the Kuiper Belt at the solar system’s edge (SN: 8/23/22). At such a great distance from Earth, it’s hard to get a clear...

50000 Quaoar (symbol: ) is a Trans-Neptunian object and is also a dwarf planet. It was discovered on June 4, 2002 by Chad Trujillo and Michael Brown at the California Institute of Technology. Quaoar has one known moon, named Weywot. It also has a ring.

2016年8月31日 · NASA's New Horizons spacecraft observations of Kuiper Belt object Quaoar ("Kwa-war"), which - at 690 miles or 1,100 kilometers in diameter - is roughly half the size of Pluto. NASA explores the unknown in air and space, innovates for the benefit of humanity, and inspires the world through discovery.

2023年2月8日 · During a break from looking at planets around other stars, ESA’s CHaracterising ExOPlanet Satellite (Cheops) mission has observed a dwarf planet in our own Solar System and made a decisive contribution to the discovery of a dense ring of material around it. The dwarf planet is known as Quaoar.

2022年12月9日 · 50000 Quaoar (2002 LM60) is a Dwarf Planet, located in the Kuiper Belt, an area of space past the orbit of Neptune. Quaoar's name and number is allocated to it by the Minor Planet Center (MPC), part of the Smithsonian Astrophysical Observatory.

2023年2月8日 · A dwarf planet called 50000 Quaoar that orbits beyond Neptune appears to have a ring that shouldn't be there, at 7.4 times more distant than the planet's radius.

2007年2月22日 · Quaoar, officially designated as 50000 Quaoar, provisional designation 2002 LM60, is a non-resonant trans-Neptunian object (cubewano) and the fourth dwarf planet[1] from the Sun, in the Kuiper belt, one of the outermost regions of the Solar System.