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Topic: Helene moon


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In the News (Tue 16 Jul 19)

  
  Dione
Dione is the densest of Saturn's moons (aside from Titan, whose density is increased by gravitational compression).
Helene is the name of an Amazon who battled with Achilles.
Helene is in Dione's leading Lagrange point and hence was sometimes referred to as "Dione B".
seds.lpl.arizona.edu /billa/tnp/dione.html   (410 words)

  
 Helene (moon) - Wikipedia, the free encyclopedia
Helene (hel'-e-nee, Greek ‘Ελένη) is a moon of Saturn.
It was discovered by Pierre Laques and Jean Lecacheux in 1980 from ground-based observations at Pic du Midi Observatory, and was designated S/1980 S 6.
In 1988 it was officially named after Helene of Greek mythology.
en.wikipedia.org /wiki/Helene_(moon)   (101 words)

  
 Encyclopedia: Helene (moon)
Inclination is one of the six orbital parameters describing the shape and orientation of a celestial orbit and is the angular distance of the orbital plane from the plane of the reference (usually planets equator or the ecliptic), stated in degrees.
Moons of solar system scaled to Earths Moon The common noun moon (not capitalized) is used to mean any natural satellite of the other planets.
S/2004 S 4 is the designation of an unconfirmed moon of Saturn announced by the Cassini Imaging Team on September 9, 2004.
www.nationmaster.com /encyclopedia/Helene-(moon)   (1768 words)

  
 The Science Show: 21 February  2004  - Tuberculosis Vaccine Research   (Site not responding. Last check: 2007-10-08)
Helene Gale: Well, this grant is for approximately $89 million dollars and that’s our largest investment to date, although this builds on at $25 million dollar investment in tuberculosis vaccine that we initially began with.
Helene Gale: Well yes, this is one of the areas that we started working on from the very beginning, starting to look at ways in which this can be made affordable, including looking at partnering with industry, partnering with people in developing countries and looking at some of these issues up front.
Helene Gale: The strategy will build on would already occur, which is vaccinating people at birth, the recombinant BCG would be given at birth and then the booster vaccine would be given early in childhood to correspond with one of the current childhood scheduled vaccine dates.
www.abc.net.au /rn/science/ss/stories/s1048312.htm   (795 words)

  
 APOD: October 10, 1995 - Dione's Lagrange Moon Helene   (Site not responding. Last check: 2007-10-08)
Helene is very unusual in that it circles Saturn near the orbit of a bigger moon: Dione.
Helene to stray slightly from its orbit 1/6 ahead of Dione, the larger moon's gravity would cause Helene to move back toward the Lagrange point.
Helene was discovered from the ground by P. Laques & J. Lecacheux in 1980.
antwrp.gsfc.nasa.gov /apod/ap951010.html   (149 words)

  
 Saturn: Moons   (Site not responding. Last check: 2007-10-08)
It is the "shepherding moon" of the inner edge of the thin, dim F ring, bracketing the F ring between itself and another small moon, Pandora.
Just as Prometheus is the "shepherding moon" that sweeps the inner edge of the F ring, Pandora is the shepherding moon that sweeps the outer edge of the same ring, in effect confining the ring between the two moons.
Helene is a very small moon that shares its orbit with the much larger Dione, always remaining 60 degrees ahead of Dione as they both circle Saturn.
www.space.com /reference/saturn/moons.html   (2446 words)

  
 Epimetheus (moon) -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-08)
Epimetheus (ep'-i-mee'-thee-us, Greek Επιμηθεύς) is a (Any natural satellite of a planet) moon of (A giant planet which is surrounded by three planar concentric rings of ice particles; 6th planet from the sun) Saturn.
Epimetheus occupies essentially the same orbit as the moon ((Roman mythology) the Roman god of doorways and passages; is depicted with two faces on opposite sides of his head) Janus.
But as the inner moon catches up with the outer moon their mutual gravitational attraction boosts the inner moon's momentum and raises its orbit, causing it to slow down.
www.absoluteastronomy.com /encyclopedia/E/Ep/Epimetheus_(moon).htm   (1022 words)

  
 * Helene - (Astronomy): Definition   (Site not responding. Last check: 2007-10-08)
Helene was discovered by P. Laques and J. Lecacheus in 1980 through ground based observations.
Helene is one of the smaller of the 18 moons of Saturn.
Helene is the thirteenth of Saturn's known satellites: : 377,400 km : 33 km (36 x 32 x 30) : ?
www.bestknows.com /astronomy/helene.html   (276 words)

  
 Helene
Even though Helene is so far away, they were able to make their discovery at an observatory in France using a telescope and electronographic camera.
Helene is the 6th farthest moon from Saturn, with a standoff distance of 377,400 km.
Helene is one of the small moons, and is just 18 x 15 km (12 x 10 miles) in size.
www.windows.ucar.edu /tour/link=/saturn/moons/helene.html   (184 words)

  
 Helene (moon) -- Facts, Info, and Encyclopedia article   (Site not responding. Last check: 2007-10-08)
Helene (hel'-e-nee, Greek ‘Ελένη) is a (Any natural satellite of a planet) moon of (A giant planet which is surrounded by three planar concentric rings of ice particles; 6th planet from the sun) Saturn.
It was discovered by Pierre Laques and Jean Lecacheux in 1980 from ground-based observations at (Click link for more info and facts about Pic du Midi Observatory) Pic du Midi Observatory, and was designated S/1980 S 6.
In 1988 it was officially named after (Click link for more info and facts about Helene) Helene of (The mythology of the ancient Greeks) Greek mythology.
www.absoluteastronomy.com /encyclopedia/h/he/helene_(moon).htm   (497 words)

  
 Dione (moon)
The Cassini orbiter is due to perform a flyby of Dione on October 10, 2005.
Dione is composed primarily of water ice, but as the densest of Saturn's moons (aside from Titan, whose density is increased by gravitational compression) it must have a considerable fraction of denser material like silicate rock in its interior.
Like Callisto, the craters lack the high relief features seen on the Moon and Mercury; this is probably due to slumping of the weak icy crust over geologic time.
www.sciencedaily.com /encyclopedia/dione__moon_   (605 words)

  
 Birds Online - My Budgies - Helene
When I took a closer look to Helene, who felt very comfortable in her new home within a few minutes, I stated that due to an earlier, badly healed injury there was something wrong with her right wing.
A few days later, Natalie got news for me. She has been told by Helene's former owner that a cat has beaten the budgie with its claws a while ago and afterwards the wing was damaged.
In the Greek mythology, Helene (=Helen or Helena) was the daughter of Zeus and Leda.
www.birds-online.de /meine_sittiche/verstorbene/helene_en.htm   (708 words)

  
 Helene - Wikipedia, the free encyclopedia
Helene Ἑλένη is a Greek female name, first attested in the Iliad (Helen of Troy).
Helene an Amazon in Greek mythology, who battled with Achilles; also to another Helene, a friend of Aphrodite's who helped her seduce Adonis.
This is a disambiguation page, a list of pages that otherwise might share the same title.
www.wikipedia.org /wiki/Helene   (112 words)

  
 New Names for Phoebe's Places and Saturn's Tiny Moons   (Site not responding. Last check: 2007-10-08)
Throughout the solar system, features on moons are drawn from a list of proper names supplied from a different myth, legend, set of myths or legends with a common theme, or a literary source.
Another tiny moon, Helene, leads Dione by 60 degrees in its orbit, and the moon Tethys has tiny Telesto and Calypso occupying the leading and trailing Lagrangian points of its orbit.
In fact, new measurements of the densities of the small moons Pan and Atlas indicate that these bodies are likely just loosely collected piles of rubble, and could even be only temporary aggregations of ring matter that could easily be blasted apart to fill in those gaps in the rings by a wayward comet.
www.planetary.org /news/2005/saturn_names_0225.html   (880 words)

  
 Saturn's Moon Helene
Laques and J. Lecacheus in 1980 through ground based observations.
Helene is called a Dione Trojan satellite because it shares the same orbit as Dione at about 60 degrees ahead of its larger companion.
This image of Helene was acquired by the Voyager 2 spacecraft on August 25, 1981.
www.solarviews.com /eng/helene.htm   (65 words)

  
 Helene (moon)
Helene is a moon of Saturn, discovered by Laques and Lecacheux in 1980 from ground-based observations.
It is co-oribtal with Dione and located in its leading Lagrangian point (L
The text of this article is licensed under the GFDL.
www.ebroadcast.com.au /lookup/encyclopedia/he/Helene_(moon).html   (67 words)

  
 Helene Freshmeat Maintains The Web's Largest Index Of Unix And Cross-platform Open Source Software. Thou
Explanation: Saturn's moon Helene is very unusual in that it circles Saturn near the orbit of a bigger moon: Dione.
Helene is in Dione's leading Lagrange point and hence was sometimes referred to as "Dione B How did Helene come to be in Dione's Lagrange point.
Helene is also the author of 67 articles and over 85 inspirational and self-help.
www.99hosted.com /names2071.html   (460 words)

  
 Helene (Mond) - netlexikon
Helene ist einer der kleinsten bekannten Monde des Planeten Saturn.
Helene umkreist Saturn in einem mittleren Abstand von 377.420 km in 65 Stunden und 41 Minuten.
Helene ist ein unregelmäßig geformter Körper mit einer Ausdehnung von 36×32×30 km.
www.lexikon-definition.de /Helene-%28Mond%29.html   (233 words)

  
 Glossary Definition: Small Moon
A small moon is a moon which is hard to see.
Right now, scientists believe that most small moons are also icy moons, meaning that they seem to be composed of ice.
For example, Uranus' moon Miranda which is small, only 200 miles across, but seems to be made of ice.
www.windows.ucar.edu /tour/link=/glossary/small_moon.html   (212 words)

  
 Trojan moon - Wikipedia, the free encyclopedia
A Trojan moon is a natural satellite of a planet occupying the L
Four examples are known, all in Saturn's system: Telesto and Calypso bracket Tethys, whilst Helene and the newly discovered Polydeuces bracket Dione.
The Earth-Moon points have been repeatedly searched for Trojans, but nothing else than a slight overabundance of dust has ever been found.
en.wikipedia.org /wiki/Trojan_moon   (96 words)

  
 Helene (moon) - Encyclopedia, History, Geography and Biography   (Site not responding. Last check: 2007-10-08)
Helene (moon) - Encyclopedia, History, Geography and Biography
It was discovered by Pierre Laques and Jean Lecacheux in 1980 from ground-based observations at Pic du Midi Observatory, and was designated S/1980 S 6.
The article about Helene (moon) contains information related to Helene (moon) and External links.
www.arikah.net /encyclopedia/Helene_%28moon%29   (124 words)

  
 AllRefer.com - Dione, in astronomy (Astronomy, General) - Encyclopedia
Also known as Saturn IV (or S4), Dione is 695 mi (1,120 km) in diameter, orbits Saturn at a mean distance of 234,500 mi (377,400 km), and has an orbital period of 2.737 earth days : the rotational period is unknown but is assumed to be the same as the orbital period.
Another moon, Helene, is co-orbital with Dione; that is, it orbits Saturn at the same distance as Dione, and precedes Dione by about 60°.
Dione also forms a satellite pair with Enceladus; that is, the two moons interact gravitationally.
reference.allrefer.com /encyclopedia/D/DioneAst.html   (297 words)

  
 Helene (moon) Encyclopedia Article, Definition, History, Biography   (Site not responding. Last check: 2007-10-08)
Looking For helene moon - Find helene moon and more at Lycos Search.
Find helene moon - Your relevant result is a click away!
Look for helene moon - Find helene moon at one of the best sites the Internet has to offer!
www.createdbygod.com /encyclopedia/Helene_(moon)   (269 words)

  
 NASA - Dione's Companion
Saturn's moon Helene, seen here with Saturn's nearly edge-on rings, orbits 60 degrees ahead of Dione and is called a "Trojan" moon.
The tiny moon Polydeuces (about 5 kilometers or 3 miles across, recently discovered by Cassini imaging scientists) is also a Dione Trojan, orbiting 60 degrees behind.
The image was taken in visible light with the Cassini spacecraft narrow-angle camera on March 12, 2005, at a distance of approximately 2 million kilometers (1.2 million miles) from Helene and at a Sun-Helene-spacecraft, or phase, angle of 90 degrees.
www.nasa.gov /mission_pages/cassini/multimedia/pia06639.html   (211 words)

  
 Dione_(moon)   (Site not responding. Last check: 2007-10-08)
Dione (dye-oe'-nee, Greek Διώνη) is a moon of Saturn discovered by Giovanni Cassini in 1684.
Like Callisto, Dione's craters lack the high relief features seen on the Moon and Mercury; this is probably due to slumping of the weak icy crust over geologic time.
The moon Helene, which orbits in Dione's leading Lagrangian point, L
www.apawn.com /search.php?title=Dione_(moon)   (701 words)

  
 Planet Saturn's Moons: Helene
Helene is a moon of the planet Saturn.
For a listing of other moons, see Moons of the planets.
This moon is too faint to be viewed in most telescopes.
www.go-astronomy.com /planets/saturn-moon-helene.htm   (39 words)

  
 HELENE
"HELENE" is a name that signifies or is derived from: "a torch", "a corposant", "the moon".
"HELENE" is a common misspelling or typo for: Hellene.
"HELENE" is used about 21 times out of a sample of 100 million words spoken or written in English.
www.websters-online-dictionary.org /definition/english/HE/HELENE.html   (602 words)

  
 Moon Gods and Goddesses
She was self-formed and the mother of the sun and moon gods, Mitra and Varuna.
She is the unlimited space of sky beyond the far east, the brilliant light from which the gods sprang.
She is associated with the seas, fertility, heaven, the moon, and sexuality.
www.silverbroomstick.com /gods/moon.html   (1546 words)

  
 TPS: Saturn's moon Helene   (Site not responding. Last check: 2007-10-08)
Helene is a tiny moon that orbits in Dione's leading Lagrange point (L4).
That is, Helene orbits Saturn on the same circular path that Dione does, but ahead of Dione, and the centers of Dione, Saturn, and Helene form an equilateral triangle.
These images are at a resolution of 5 km/pixel (at the center of the globes).
www.planetary.org /saturn/helene.html   (123 words)

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