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  2. Uranus - Wikipedia

    en.wikipedia.org/wiki/Uranus

    The lowest temperature recorded in Uranus's tropopause is 49 K (−224.2 °C; −371.5 °F), making Uranus the coldest planet in the Solar System. [ 18 ] [ 95 ] One of the hypotheses for this discrepancy suggests the Earth-sized impactor theorised to be behind Uranus's axial tilt left the planet with a depleted core temperature, as the impact ...

  3. List of gravitationally rounded objects of the Solar System

    en.wikipedia.org/wiki/List_of_gravitationally...

    According to the IAU's explicit count, there are eight planets in the Solar System; four terrestrial planets (Mercury, Venus, Earth, and Mars) and four giant planets, which can be divided further into two gas giants (Jupiter and Saturn) and two ice giants (Uranus and Neptune). When excluding the Sun, the four giant planets account for more than ...

  4. Atmosphere of Uranus - Wikipedia

    en.wikipedia.org/wiki/Atmosphere_of_Uranus

    Temperature profile of the Uranian troposphere and lower stratosphere. Cloud and haze layers are also indicated. The Uranian atmosphere can be divided into three main layers: the troposphere, between altitudes of −300 [a] and 50 km and pressures from 100 to 0.1 bar; the stratosphere, spanning altitudes between 50 and 4000 km and pressures between 0.1 and 10 −10 bar; and the thermosphere ...

  5. Uranus’ mysterious features on display in new Webb image - AOL

    www.aol.com/uranus-hidden-rings-unusual-features...

    Humanity’s first good look at Uranus came when Voyager 2 flew by the seventh planet from the sun in 1986. Through the spacecraft’s camera, which viewed the solar system in visible light ...

  6. New Uranus research suggests what’s known about the planet ...

    www.aol.com/news/rare-event-during-1986-uranus...

    A solar wind event squashed the protective bubble around Uranus just before Voyager 2 flew by the planet in 1986, shifting how astronomers understood the mysterious world.

  7. Category:Uranus - Wikipedia

    en.wikipedia.org/wiki/Category:Uranus

    Download as PDF; Printable version; ... Uranus co-orbital minor planets (5 P) Pages in category "Uranus"

  8. Outline of Uranus - Wikipedia

    en.wikipedia.org/wiki/Outline_of_Uranus

    Uranus – seventh planet from the Sun. It has the third-largest planetary radius and fourth-largest planetary mass in the Solar System . Uranus is similar in composition to Neptune , and both have different bulk chemical composition from that of the larger gas giants Jupiter and Saturn .

  9. Arthur Francis O'Donel Alexander - Wikipedia

    en.wikipedia.org/wiki/Arthur_Francis_O'Donel...

    Arthur Francis O'Donel Alexander (1896–1971) was an English amateur astronomer and writer. He is best known for his books The Planet Saturn - A History of Observation, Theory and Discovery (1962), and The Planet Uranus - A History of Observation, Theory and Discovery (1965), historical accounts of the observations of these planets from the earliest date up to the date of publication.