Uranus

Definitions

  • WordNet 3.6
    • n Uranus 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"
    • n Uranus (Greek mythology) god of the heavens; son and husband of Gaea and father of the Titans in ancient mythology
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Webster's Revised Unabridged Dictionary
  • Interesting fact: Uranus has 27 moons
    • Uranus (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.
    • Uranus (Gr. Myth) The son or husband of Gaia (Earth), and father of Chronos (Time) and the Titans.
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Century Dictionary and Cyclopedia
  • Interesting fact: Uranus? winter and summer seasons last the equivalent of 21 Earth years
    • n Uranus In classical mythology, the son of Ge or Gaia (the Earth), and by her the father of the Titans, Cyclopes, etc. He hated his children, and confined them in Tartarus; but on the instigation of Gaia, Kronos, the youngest of the Titans, overthrew and dethroned him. Also written Ouranos.
    • n Uranus In astronomy, the outermost but one of the planets, appearing to the naked eye as a faint star. It was discovered as a moving body with a disk, March 13th, 1781, by Sir W. Herschel, but had previously been observed twenty times as a star by different observers. These are called the ancient observations of Uranus. The planet, seen with a telescope of the first class, appears as a small bluish disk with two bands. The diameter perpendicular to these is less than that parallel to them by 1/14. It is a little smaller than Neptune, its diameter being 31,000 miles; its mass is 1/22600 of the sun, or 14.7 times
    • n Uranus that of the earth; its density is therefore about 1.4, being a little more than that of Jupiter. It is about 19.2 times as far from the sun as the earth is; and its period of revolution is about eighty-four years and one week. It has four satellites—Ariel, Umbriel, Titania, and Oberou—of which the first two are extremely difficult telescopic objects. They revolve in one plane nearly perpendicular to that of the orbit of the planet.
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Chambers's Twentieth Century Dictionary
  • Interesting fact: All the moons of the Solar System are named after Greek and Roman mythology, except the moons of Uranus, which are named after Shakespearean characters.
    • n Uranus ū′ra-nus the name of one of the primary planets.
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Etymology

Webster's Revised Unabridged Dictionary
L. Uranus, Gr. O'yrano`s Uranus, o'yrano`s heaven, sky. Cf. Uranium
Chambers's Twentieth Century Dictionary
L.,—Gr. ouranos, heaven.

Usage

In literature:

Both Uranus and Neptune are approximately upon our present course.
"Spacehounds of IPC" by Edward Elmer Smith
Another cherry at the distance of three-quarters of a mile would stand for Uranus.
"Harper's New Monthly Magazine, Vol. 3, July, 1851" by Various
Astrologers agree in attributing evil effects to Uranus.
"Myths and Marvels of Astronomy" by Richard A. Proctor
In Phoenician mythology, one of the sons of Uranus is named Baetylus.
"Encyclopaedia Britannica, 11th Edition, Volume 3, Part 1, Slice 2" by Various
He fixed the mean diameter of Uranus at 34,900 miles.
"A Popular History of Astronomy During the Nineteenth Century" by Agnes M. (Agnes Mary) Clerke
Their satellites, with the exception of those of Uranus and Neptune, perform their revolutions in obedience to the same law.
"The Astronomy of Milton's 'Paradise Lost'" by Thomas Orchard
Uranus discovered in 1781.
"Pioneers of Science" by Oliver Lodge
Uranus and Neptune are too far away to present any attraction for amateur observers.
"Pleasures of the telescope" by Garrett Serviss
The position of the stars reminded me of the eve of Rodova, except that Uranus was not with us.
"Mrs. Fitz" by J. C. Snaith
His Tables of the Orbit of Uranus were crowned by the Academy, 1790.
"A Biographical Dictionary of Freethinkers of All Ages and Nations" by Joseph Mazzini Wheeler
Two years before this, January 11, 1787, he discovered two satellites of Uranus, Oberon and Titania.
"Famous Men of Science" by Sarah K. Bolton
The case of Jupiter carries with it those of Saturn, Uranus, and Neptune.
"Are the Planets Inhabited?" by E. Walter Maunder
The cases of Uranus and Neptune are similar to that of Saturn, but of course stronger, in proportion to their smaller light and heat.
"The Plurality of Worlds" by William Whewell
These planets, in their order outward from the sun, are Mercury, Venus, our Earth, Mars, Jupiter, Saturn, Uranus, and Neptune.
"Great Inventions and Discoveries" by Willis Duff Piercy
Uranus had brought them together once before.
"The Gray Phantom" by Herman Landon
Uranus rises 10 11 eve.
"Scientific American, Vol. XXXIX.--No. 24. [New Series.], December 14, 1878" by Various
On the 31st, at meridian passage, Mars and Uranus are nearly together.
"Scientific American, Vol. XLIII.--No. 1. [New Series.], July 3, 1880" by Various
But as Uranus begot children with other women, El, when he was grown up, determined to revenge the slight put upon his mother.
"The History of Antiquity, Vol. I (of VI)" by Max Duncker
Uranus and Neptune are planets so remote, and their apparent disks are so small, that very little is known about their physical condition.
"Astronomy" by David Todd
For thirty years irregularities in the motion of Uranus had been noticed.
"Curiosities of Heat" by Lyman B. Tefft
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In poetry:

I've shot at heaps of stars since then,
but always it's the same -
A barnyard door has mocked me when
Uranus was my aim.
"Aspiration" by Robert W Service

In news:

The good news is that Jupiter and Uranus will remain close together, and will appear in the same binocular field for all this year.
It's impossible to leave the house anymore without seeing a Real Housewife —of New York, of Atlanta, of New Jersey, of Uranus.
Harvest Moon Meets Up With Uranus in Opposition.
A Harvest full moon will rise this weekend just above the planet Uranus.
The nearly full moon will rise just above the bright planet Jupiter and a somewhat dimmer Uranus on Wednesday.
Astronomers have created the most detailed, high-resolution images of Uranus ever taken, showing off its complex weather patterns and several features that scientists don't completely understand.
Observing Uranus , the ice giant.
Then, Uranus joined Pluto in Virgo and a new awareness of freedom appeared within humanity.
This week Uranus joins (squares) Pluto again.
Uranus /Pluto Square: Part Three.
1781 – William Herschel discovers Uranus , the seventh planet from the sun (More info).
Eruption on 'boring' Uranus excites world of astronomy.
Proposed by British scientists as a joint effort of NASA and the European Space Agency, the mission would offer the first close-up view of Uranus in 25 years.
Four billion years ago, Uranus and Neptune switched places during a gentle ride out to their current orbits.
Images of Uranus and its rings show the difference in viewing angles.
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In science:

Furthermore, it is difficult to construct very massive planets with primarily heavy elements (the behavior shown for the high density case is arbitrary between Uranus and Jupiter).
Planetesimals To Brown Dwarfs: What is a Planet?
This mechanism may explain the existence of Uranus– and Neptune–like exoplanets at larger radii.
Disks around Brown Dwarfs and Cool Stars
Very recently, nine irregular satellites (irregulars) have been discovered around Uranus.
Constraints to Uranus' Great Collision. IV. The Origin of Prospero
In the particular case of Uranus, their existence may cast light on the mechanism responsible for its peculiar rotation axis (Parisi & Brunini 1997, Brunini et al. 2002 (hereafter BP02)).
Constraints to Uranus' Great Collision. IV. The Origin of Prospero
Several theories to account for the large obliquity of Uranus have been proposed.
Constraints to Uranus' Great Collision. IV. The Origin of Prospero
In an attempt to clarify the origin of Uranus obliquity and of its irregulars, we are using in this study the most updated information on their orbital and physical properties.
Constraints to Uranus' Great Collision. IV. The Origin of Prospero
Lissauer & Safronov 1991), the GC is assumed to occur at the end of Uranus formation (e.g.
Constraints to Uranus' Great Collision. IV. The Origin of Prospero
Assume that the GC occurred when Uranus was almost fully formed, meaning that its feeding zone was already depleted of primordial planetesimals.
Constraints to Uranus' Great Collision. IV. The Origin of Prospero
Here we report numerical simulations showing that Uranus’ axis can be tilted during the planetary migration, without the need of a giant impact, provided that the planet had an additional satellite and a temporary large inclination.
A collisionless scenario for Uranus tilting
Today, Uranus’ obliquity (97◦ ) is essentially stable.
A collisionless scenario for Uranus tilting
We therefore propose that Uranus had an additional satellite and that its spin-axis was tilted during the planetary migration.
A collisionless scenario for Uranus tilting
The construction of such a scenario for Uranus tilting can be described in four steps.
A collisionless scenario for Uranus tilting
Fig. 1.— Uranus precession frequency in presence of a heavy satellite.
A collisionless scenario for Uranus tilting
Uranus effective precession constant as a function of the distance of an additional satellite of mass m = 0.01 MU (a), m = 0.005 MU (b), and m = 0.001 MU (c), where MU is the mass of Uranus (Bou´e & Laskar 2006).
A collisionless scenario for Uranus tilting
For this calculation, the semi-ma jor axis and the eccentricity of Uranus are set to the current values, and the satellite is assumed to have a circular orbit.
A collisionless scenario for Uranus tilting
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