Adrastea

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Adrastea

Adrastea , in astronomy, one of the 39 known moons, or natural satellites, of Jupiter .

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"Adrastea." The Columbia Encyclopedia, Sixth Edition. 2008. Encyclopedia.com. 16 Dec. 2009 <http://www.encyclopedia.com>.

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Adrastea

A Dictionary of Astronomy | 1997 | Â© A Dictionary of Astronomy 1997, originally published by Oxford University Press 1997. (Hide copyright information) Copyright

Adrastea The second-closest satellite of Jupiter, distance 128 900 km, orbital period 0.298 days; also known as Jupiter XV. Adrastea is 20 × 16 × 14 km in size. It was discovered in 1979 with the Voyager 2 spacecraft. It lies less than one Jovian radius above the planet's cloud tops and just within the outer rim of Jupiter's main ring. Material knocked off Adrastea by micrometeorite impacts is thought to contribute to the ring.

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Adrastea

A Dictionary of Earth Sciences | 1999 | | Â© A Dictionary of Earth Sciences 1999, originally published by Oxford University Press 1999. (Hide copyright information) Copyright

Adrastea (Jupiter XV) A jovian satellite (a moom) that orbits within the main ring of Jupiter; it and Metis may be the source of the material comprising the ring. Both are considered too small to suffer tidal disruption, but eventually their orbits will decay. Adrastea is one of the smallest satellites in the solar system. It was discovered in 1979 by David Jewitt. Its diameter is 20 km (±20) (23 × 20 × 15 km); mass 1.91 × 10⁶ kg; mean distance from Jupiter 129 000 km.

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AILSA ALLABY and MICHAEL ALLABY. "Adrastea." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. 16 Dec. 2009 <http://www.encyclopedia.com>.

AILSA ALLABY and MICHAEL ALLABY. "Adrastea." A Dictionary of Earth Sciences. 1999. Encyclopedia.com. (December 16, 2009). http://www.encyclopedia.com/doc/1O13-Adrastea.html

AILSA ALLABY and MICHAEL ALLABY. "Adrastea." A Dictionary of Earth Sciences. 1999. Retrieved December 16, 2009 from Encyclopedia.com: http://www.encyclopedia.com/doc/1O13-Adrastea.html

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Notes on Pioneer anomaly explanation by sattellite-shift formula of quaternion relativity: remarks on "less mundane explanation of Pioneer anomaly from Q-relativity".
Magazine article from: Progress in Physics; 4/1/2007

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	Mooning over the dust rings of Jupiter.(photos reveal new information) Magazine article from: Science News; 9/19/1998; ; 700+ words ; ...gossamer rings. Jupiter's tiny moon Adrastea, only 20 kilometers across, skims the...adding weight to earlier suspicions that Adrastea feeds the ring. As one of the smallest Jovian moons, Adrastea has weak gravity and stands to lose great...
	Galileo probe data proves how Jupiter's rings are formed Dust blasted from moons by impacts produces thin bands around planet Newspaper article from: The Milwaukee Journal Sentinel; 9/21/1998; ; 643 words ; ...orbiting nearby: Amalthea, Thebe, Adrastea and Metis. "For the first time, we...it's likely the main ring comes from Adrastea and Metis," said Cornell's Joseph...swept up into the rings. The moon called Adrastea is "most perfectly suited for the job...
	NASA: Galileo finds Jupiter's rings formed by dust blasted off small moons. M2 Presswire; 9/16/1998; 700+ words ; ...and we now believe it is likely that the main ring comes from Adrastea and Metis," Burns said. "The structure of the gossamer...orbit that lies just at the periphery of the main ring, tiny Adrastea is "most perfectly suited for the job." As dust particles...
	GALILEO FINDS JUPITER'S RINGS FORMED BY DUST BLASTED OFF SMALL MOONS Transcript from: Regulatory Intelligence Data; 9/15/1998; ; 700+ words ; ...and we now believe it is likely that the main ring comes from Adrastea and Metis, Burns said. The structure of the gossamer rings...orbit that lies just at the periphery of the main ring, tiny Adrastea is most perfectly suited for the job. As dust particles are...
	Jupiter's rings formed by cosmic crash Newspaper article from: The Independent - London; 9/16/1998; ; 685 words ; ...likely that the main ring comes off from two other moons, Adrastea and Metis", Professor Burns said. Astronomers have long...satellite's gravitational field", Professor Burns said. Adrastea is just five miles in diameter and small enough to allow dust...
	Notes on Pioneer anomaly explanation by sattellite-shift formula of quaternion relativity: remarks on "less mundane explanation of Pioneer anomaly from Q-relativity". Magazine article from: Progress in Physics; 4/1/2007; ; 700+ words ; ...place. For very fast satellites (like Jupiter's Metis and Adrastea) and for sufficiently long period of time the effect can probably...approached very close to Jupiter; in particular data concerning Adrastea, whose location was as close to Jupiter as the space probe...
	U. Arizona astronomers uncover secret to Jupiter's rings News Wire article from: University Wire; 9/21/1998; ; 596 words ; ...when they hit the moons. Jupiter's inner moons, Amalthea, Adrastea, Metis and Thebe, are just the right size for kicking things...Thebe orbits at the edge of the fainter gossamer ring and Adrastea and Metis contribute dust to the main ring. Jupiter's rings...
	NASA Spacecraft Sees Changes in Jupiter System Newspaper article from: U.S. Newswire; 10/9/2007; 700+ words ; ...Movies made from New Horizons images offer an unprecedented look at ring dynamics, showing the tiny inner moons Metis and Adrastea shepherding the materials around the rings. A search for smaller moons inside the rings, and possible new sources of the...
	What's in a name?(ASK DR. CY BORG)(the moon) Magazine article from: Odyssey; 9/1/2008; ; 700+ words ; ...English name really is the Moon. I know, that may seem a bit boring compared to the names of other moons (like Metis and Adrastea), but Earth's Moon gets a capital M, whereas all the moons of other planets just get a lowercase m (it was not until...
	Scientists Find Rings of Jupiter Are Shaped in Shadow. News Wire article from: Ascribe Higher Education News Service; 4/30/2008; 700+ words ; ...known moons. The dust forming Jupiter's faint rings is produced when bits of space debris smashes into the small inner moons Adrastea, Metis, Amalthea and Thebe (closest to farthest). This dust is organized into a main ring, an inner halo, and two fainter...