Quaoar - Wikipedia
Quaoar (minor-planet designation: 50000 Quaoar) is a large, 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.
Quaoar: Definition, Rings, Orbit, Discovery, Size
2024年8月26日 — Quaoar orbits the Sun at an average distance of 43.6 astronomical units, completing one rotation every 285 Earth years. NASA’s New Horizons spacecraft measured Quaoar’s size in 2016 using occultation observations, …
The Dwarf Planet Quaoar - Universe Today
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...
Quaoar: Planetoid Beyond Pluto | Space
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 classification and the...
The dwarf planet Quaoar - Phys.org
2015年8月28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...
Quaoar - NASA Science
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.
The dwarf planet Quaoar hosts an impossible ring - Science News …
2023年3月6日 — One of the two gas giants, this planet takes 10.6 hours to rotate (completing a day) and 29.5 Earth years to complete one orbit of the sun. It has at least 82 moons. But what most distinguishes this planet is the broad and flat plane of bright rings that orbit it.
ESA’s Cheops finds an unexpected ring around dwarf planet Quaoar
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.
Quaoar's orbit in the Solar System - ESA/Hubble
2002年10月7日 — NASA's Hubble Space Telescope has measured the largest object discovered in the solar system since the discovery of Pluto 72 years ago. Approximately half the size of Pluto, the icy world is called "Quaoar" (pronounced kwa-whar). Quaoar is about 4 billion miles away, more than a billion miles farther than Pluto.
Orbit Viewer - NASA
This tool shows approximate orbits of the planets and major planetary satellites. Optionally, one or more user-selected small body (asteroids and comets) orbit may also be shown. For help using this tool, select the Help item under the menu icon (below).