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Ophelia

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Ophelia
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Ophelia
Related Category: Astronomy: General
in astronomy, one of the natural satellites, or moons, of Uranus.

Ophelia acts as the outer shepherd satellite for Uranus' Epsilon ring. The orbit of Ophelia is within the synchronous orbit radius of Uranus, and therefore the moon is slowly decaying due to tidal forces.

Ophelia
Uranus VII - 1986U8
Ophelia was named after the daughter of Polonius in Shakespeare's play Hamlet. Ophelia is one of the smaller moons in the Solar System and is the second innermost known moon of Uranus.

Ophelia
Uranus VII
Ophelia is the second of Uranus' known satellites: orbit: 53,764 km from Uranus diameter: 32 km mass: ?

Ophelia [1986 U8]:
References
Arnett, W. "The Nine Planets: Ophelia." .

Ophelia is the second of Uranus' moons. This world orbits just outside the Epsilon ring, and for this reason is believed to be, like Cordelia, a shepherd moon.

Ophelia -- In William Shakespeare's Hamlet, the daughter of Polonius and deserted lover of Hamlet.

Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda, Puck, Miranda, Ariel, Umbriel, Titania, Oberon, Caliban, Sycorax, Prospero, Setebos, Stephano, Trinculo, plus 6 to receive a name
Neptune
13 ...

The inner two satellites, Cordelia and Ophelia, orbit on either side of the Epsilon ring at exactly the right radii required for shepherding (see Figure 52).

In the figure above, the inner two satellites of Uranus, Cordelia and Ophelia, orbit on either side of the Epsilon ring at exactly the right radii required for shepherding.

The two innermost moons of Uranus, Cordelia and Ophelia, act as shepherd moons. They have orbits on either side of the last ring, Epsilon, which keeps it narrow.

The next ten small satellites-Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda, and Puck-were revealed by Voyager 2 in 1985-86.

The Voyager 2 spacecraft discovered 10 more, and they were named Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Puck, and Belinda.

[17] The two innermost moons (Cordelia and Ophelia) serve as shepherds of Uranus's ε ring, while small moon Mab is a source of Uranus's outermost μ ring.

Prospero, Stephano, Setebos, Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda, Puck, Miranda, Ariel, Umbriel, Titania, Oberon.
?
2 C!s I like it! ...

Field, Ophelia. The Kit-Cat Club: Friends who Imagined a Nation. Harper Collins, 2008.
Hill, Brian W. (1989). Sir Robert Walpole: "Sole and Prime Minister." London: Hamish Hamilton.
Morley, John. (1889). Walpole. London: Macmillan and Co.

Figure 13.18 These two small moons, discovered by Voyager 2 in 1986 and now named Cordelia and Ophelia, tend to "shepherd" Uranus's Epsilon ring, keeping it from diffusing away into space.
THE RINGS OF NEPTUNE ...

Around Saturn: none (like Jupiter, Saturn is a very fast rotator but has no satellites close enough)
Around Uranus: Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Cupid, Belinda, and Perdita ...

Uranus' known moons are (from nearest to furthest from the planet): Cordelia, Ophelia, Bianca, Cressida, Desdemona, Juliet, Portia, Rosalind, Belinda, Puck, Miranda, Ariel, Umbriel, Titania, and Oberon.

delta-ring lambda-ring epsilon-ring uranus moons uranus's moons uranian moons uranus satellites uranus's satellites uranian satellites uranus moon uranus's moon uranian moon uranus satellite uranus's satellite uranian satellite Cordelia Ophelia ...

Voyager 2 found two small shepherd moons for it, one just inside and one just outside (adjacent image (Ref); the white dots inside the yellow circles). They appear to be about 20-30 km in diameter, and have been named Ophelia and Cordelia.
...

See also: Uranus, Cordelia, Earth, Solar, Belinda