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epidermic    
a. 表皮的;皮上的

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  • Timeline of discovery of Solar System planets and their moons
    After he discovered Ariel and Umbriel in 1851, Lassell numbered the four real Uranian satellites then known outward from their parent planet as I (Ariel), II (Umbriel), III (Titania), and IV (Oberon), and this finally stuck
  • Uranus Moons: Facts - Science@NASA
    Oberon and Titania are the largest Uranian moons, and were the first to be discovered – by William Herschel in 1787 William Lassell, who had been the first to see a moon orbiting Neptune, discovered the next two, Ariel and Umbriel
  • 240 Years Ago: Astronomer William Herschel Identifies Uranus as the . . .
    Herschel later discovered Uranus’ two largest moons, Titania and Oberon, in 1787 Astronomers discovered three more moons, Umbriel and Ariel in 1851, and Miranda in 1948 Left: Image of Uranus and its five largest moons taken with the 60-inch telescope at the Mt Wilson Observatory
  • Moons of Uranus | Table, Year Discovered, Names, Facts | Britannica
    Uranus’s five largest moons— Miranda, Ariel, Umbriel, Oberon, and Titania —range from about 240 to 800 km (150 to 500 miles) in radius All were discovered telescopically from Earth, four of them before the 20th century Ten small inner moons were found by Voyager 2 in 1985–86
  • In Depth | Uranus Moons – NASA Solar System Exploration
    Oberon and Titania are the largest Uranian moons, and were the first to be discovered – by William Herschel in 1787 William Lassell, who had been the first to see a moon orbiting Neptune, discovered the next two, Ariel and Umbriel Nearly a century passed before Gerard Kuiper found Miranda in 1948
  • Uranus moons — Names, number and exploration | Space
    The first moons of Uranus to be discovered, Oberon and Titania, were found by German-born astronomer William Herschel in 1787 Herschel had discovered Uranus itself six years earlier in March
  • Titania Oberon - General Astronomy - Telescope Live Community
    On 11 January 1787, Herschel discovered both Titania and Oberon, the first Uranian moons to be discovered The two moons are named after the Queen (Titania) and King (Oberon) of the mythical fairies in Shakespeare's "A Midsummer Night's Dream", and were named by William's son, John Herschel [1792-1871], in 1852
  • Planet Uranus - Royal Museums Greenwich
    Before the Voyager 2 fly-by, 5 satellites were known Two, Titania and Oberon, were found by Herschel in 1787 Ariel and Umbriel were discovered in 1851 and Miranda in 1948 Voyager added another 10 objects of which two are ‘shepherds' in the rings As of February 2024, Uranus has 28 known moons Uranus' rings
  • 1789-01-11 - Earth Site Education
    On the 11th of January 1787, Herschel also discovered two of Uranus’s moons, naming them Titania and Oberon after characters from William Shakespeare’s A Midsummer Night’s Dream Titania is the largest moon of Uranus, with a diameter of approximately 1,578 kilometres
  • William Herschel discovers Titania and Oberon, two moons of Uranus . . .
    His discovery of Uranus as a new planet in 1781 positioned him as a leading authority on the study of celestial bodies Building on his previous achievements, Herschel continued his astronomical endeavors, and on January 11, 1787, he detected two previously unknown moons orbiting around Uranus





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