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Uranus    音标拼音: [j'urənəs] [j'ɚənəs]
n. 天王星

天王星

Uranus
n 1: (Greek mythology) god of the heavens; son and husband of
Gaea and father of the Titans in ancient mythology [synonym:
{Ouranos}, {Uranus}]
2: a giant planet with a ring of ice particles; the 7th planet
from the sun has a blue-green color and many satellites;
"Uranus was discovered by William Herschel in 1781"

Uranus \U"ra*nus\ (-n[u^]s), n. [L. Uranus, Gr. O'yrano`s
Uranus, o'yrano`s heaven, sky. Cf. {Uranium}.]
[1913 Webster]
1. (Gr. Myth.) The son or husband of Gaia (Earth), and father
of Chronos (Time) and the Titans.
[1913 Webster]

2. (Astron.) One of the primary planets. It is about
1,800,000,000 miles from the sun, about 36,000 miles in
diameter, and its period of revolution round the sun is
nearly 84 of our years.
[1913 Webster]

Note: This planet has also been called {Herschel}, from Sir
William Herschel, who discovered it in 1781, and who
named it {Georgium Sidus}, in honor of George III.,
then King of England.
[1913 Webster]


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  • Uranus: A guide to the coldest planet in the solar system | Space
    Uranus is the seventh planet from the sun and was the first to be discovered with a telescope When you purchase through links on our site, we may earn an affiliate commission Here’s how it
  • Uranus Fact Sheet - NSSDCA
    Uranus Observational Parameters Discoverer: William Herschel Discovery Date: 13 March 1781 Distance from Earth Minimum (10 6 km) 2580 6 Maximum (10 6 km) 3153 5 Apparent diameter from Earth Maximum (seconds of arc) 4 1 Minimum (seconds of arc) 3 3 Mean values at opposition from Earth Distance from Earth (10 6 km) 2721 37 Apparent diameter (seconds of arc) 3 8 Apparent visual magnitude 5 57
  • Uranus Facts | Rotation, Rings, Atmosphere, Size, History Definition
    Uranus is the seventh planet discovered in the Solar System that also led to the discovery of the last planet, Neptune they are both referred to as ice giants Officially recognized in 1781 after many observations in the past, it is the third-largest planet of the Solar System
  • Uranus: Exploration - NASA Science
    Significant Events March 13, 1781: British astronomer William Herschel discovers Uranus – the first new planet discovered since ancient times – while searching for faint stars 1787-1851: Four Uranian moons are discovered and named Titania, Oberon, Ariel and Umbriel 1948: Another moon, Miranda, is discovered March 10, 1977: While observing Uranus' passing in front of a distant star (SAO
  • Uranus - Gas Giant, Rings, Moons | Britannica
    Uranus - Gas Giant, Rings, Moons: At Uranus’s distance from the Sun, the planet takes slightly more than 84 Earth years, essentially an entire human life span, to complete one orbit The eccentricity of its orbit is low—that is, its orbit deviates little from a perfect circle—and the inclination of the orbit to the ecliptic—the plane of Earth’s orbit and nearly the plane of the solar
  • Solar System Tour - Uranus - NASA
    Uranus Pale blue Uranus was the first planet discovered by telescope (Sir William Herschel in 1781) It rotates nearly on its side, with a 98 deg axial tilt, giving it the most extreme seasons in the Solar System
  • Planet Uranus - All The Facts • The Planets
    Planet Uranus – Orbit Rotation When Uranus was discovered it expanded the radius of the known Solar System by almost a factor of two What this means is that, on average, Uranus’ orbit is about 2 87 x 10 9 km The consequence of such an enormous distance is that it takes sunlight around two hours and forty minutes to reach Uranus—that is almost twenty times as long as it takes sunlight
  • Uranus, the sideways planet - The Planetary Society
    Uranus Facts Average temperature: -195°C (-320°F) where atmospheric pressure equals sea level on Earth Average distance from Sun: 2,873 million kilometers (1,785 million miles), or 19 times farther from the Sun than Earth Diameter: 51,118 kilometers (31,763 miles), Uranus is 4 times wider than Earth Volume: 68 trillion km3 (16 trillion mi3), Earth could fit inside Uranus 68 times
  • Uranus: Facts about the sideways ice giant | Live Science
    Uranus is a strange world in the solar system that spins on its side A new probe that will visit Uranus in the coming decades could unlock even more secrets about this peculiar planet
  • Solar System Exploration: Uranus - NASA
    This site has facts, figures, images and links about the planet Uranus
  • Uranus 101 | National Geographic - YouTube
    Uranus is a planet beyond convention Find out why it boasts the coldest temperatures in the solar system, what phenomena caused the unique tilt of its axis,
  • Uranus - NASA
    Uranus is the seventh planet from the Sun, and the third largest planet in our solar system It appears to spin sideways
  • Uranus - NSSDCA
    NSSDCA Lunar Planetary Science: Uranus Page General Information Uranus Fact Sheet; Uranian Satellite Fact Sheet; Uranian Rings Fact Sheet
  • Uranus - National Air and Space Museum
    Uranus, also known as the Tilted Giant for its unique tilted rotation that makes it appear to spin on its side, is the second outermost planet in our Solar System





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