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Proteus, A Moon Of Neptune Proteus [PROH-tee-us], like all six of Neptune's newly discovered small satellites, is one of the darkest objects in the solar system -- "as dark as soot" is not too strong of a description. Proteus is about 400 kilometers (250 miles) in diameter, larger than Nereid. This image of Proteus was acquired by the Voyager 2 spacecraft on August 25, 1989 from a range of 146,000 kilometers (91,000 miles). www.solarviews.com /eng/proteus.htm   (409 words)

Proteus King Proteus was the catalyst in the story of Bellerophon. Proteus was the son-in-law of Iobates, King of Lycia, and sent Bellerophon to him with a sealed message that asked to kill Bellerophon. Proteus is a son of Poseidon or Oceanus and a Naiad. www.ebroadcast.com.au /lookup/encyclopedia/pr/Proteus.html   (379 words)

Moon@Everything2.com A moon and a natural satellite are not the same thing; Earth's moon is not a true satellite since the barycenter of the Earth-Moon system is outside of the Earth. The celestial orb which revolves round the earth; the satellite of the earth; a secondary planet, whose light, borrowed from the sun, is reflected to the earth, and serves to dispel the darkness of night. The diameter of the moon is 2,160 miles, its mean distance from the earth is 240,000 miles, and its mass is one eightieth that of the earth. www.everything2.com /index.pl?node=moon   (1087 words)

Solar System Exploration: Planets: Neptune: Moons Triton (not to be confused with Saturn's moon, Titan), is far and away the largest of Neptune's satellites. He missed Proteus, the second-largest, because it's too dark and too close to Neptune for telescopes of that era. It's the only large moon in the solar system that circles its planet in a direction opposite to the planet's rotation (a retrograde orbit), which suggests that it may once have been an independent object that Neptune captured. solarsystem.jpl.nasa.gov /planets/profile.cfm?Object=Neptune&Display=Moons   (512 words)

NASA's Solar System Exploration: Planets: Neptune: Moons   (Site not responding. Last check: ) Triton (not to be confused with Saturn's moon, Titan), is far and away the largest of Neptune's satellites. He missed Proteus, the second-largest, because it's too dark and too close to Neptune for telescopes of that era. It's the only large moon in the solar system that circles its planet in a direction opposite to the planet's rotation (a retrograde orbit), which suggests that it may once have been an independent object that Neptune captured. www.ulo.ucl.ac.uk /~diploma/year_one/NASA_SSE/neptune_moons.html   (510 words)

Proteus   (Site not responding. Last check: ) Proteus was a sea god who could change his shape at will. Though it is larger than Nereid, it was not discovered earlier because it is very dark and so close to Neptune that it is difficult to see in the glare of the much brighter planet. Proteus is probably about as big as an irregular body can be before its gravity pulls it into a more spherical shape. seds.lpl.arizona.edu /nineplanets/nineplanets/proteus.html   (109 words)

Proteus (moon) - Wikipedia, the free encyclopedia Proteus was discovered from the images taken by Voyager 2 probe during the Neptune flyby in 1989. Proteus is more than 400 kilometres in diameter, larger than Nereid, another moon of Neptune. Proteus is one of the darkest objects in the solar system, as dark as soot; like Saturn's moon Phoebe, it reflects only 6 percent of the sunlight that strikes it. en.wikipedia.org /wiki/Proteus_(moon)   (312 words)

Space Today Online - Solar System - Exploring Neptune - Moons Triton, Jupiter's moon Io and the planet Venus are the only bodies in the Solar System outside of Earth that are known to be volcanically active at the present time. Proteus also is closer to Neptune, which explains why it was undiscovered even as Nereid could be observed from Earth. Proteus is probably about as big as an irregular body can be before its gravity would pull it into a spherical shape. www.spacetoday.org /SolSys/Neptune/NeptuneMoons.html   (567 words)

Neptune: Moons   (Site not responding. Last check: ) In August of that year Voyager 2 provided evidence of 6 more moons, including confirmation of a tiny moon (Larissa) which had been hinted at by a chance star occultation in 1981. Proteus is a small, rocky moon that orbits very close to Neptune, circling its parent planet every 27 hours. It is the most eccentric orbit of any planet or moon in the solar system, at its farthest distance being almost 8 times as far from Neptune as its closest approach. dev.space.com /reference/neptune/moons.html   (1070 words)

The Moons of the Solar System — Proteus    ••• THE ROTATING MAP ...   (Site not responding. Last check: ) Proteus was a marine idol also known as the Sea Greybeard. Proteus changed himself into a lion, and than on into a snake, leopard, boar, tree and water before he answered the question.     This moon is in almost circular prograde orbit (→eccentricity e = 0.0005) with a →semimajor axis a = 117,600 km. republika.pl /ksiezyce/neptune/proteus_en.html   (438 words)

Proteus Proteus was discovered in June 1989 by Voyager scientist Stephen P. Synnott from images sent back by Voyager 2. Although Proteus is larger than Nereid, it was not discovered earlier because it is very dark (among the darkest objects in the solar system) and so close to Neptune that it is difficult to see in the glare of the much brighter planet. Proteus is thought to be about as large as a satellite can without being drawn into a spherical shape by its own gravity. www.daviddarling.info /encyclopedia/P/Proteus.html   (155 words)

Proteus - AbsoluteAstronomy.com Proteus is a moon which orbits the planet Neptune. Proteus maintains an average distance from Neptune of 117,647 km. This moon is a average-sized satellite with a diameter of 436(X 416 X 402) km. www.absoluteastronomy.com /moons/proteus.htm   (73 words)

Proteus He learned from Proteus' daughter that if he could capture her father he could force him to reveal which of the gods he had offended, and how he could propitiate them and return home. Proteus emerged from the sea to sleep among his colony of seals, but Menelaus was successful at holding him, though Proteus took the forms of a lion, a serpent, a leopard, a pig, even of water and a tree. Proteus then answered truthfully, further informing Menelaus that his brother Agamemnon had been murdered on his return home, that Ajax the Lesser had been shipwrecked and killed, and that Odysseus was stranded on Calypso's Isle. www.mlahanas.de /Greeks/Mythology/Proteus.html   (594 words)

Astronomy For Kids -The Moons of Neptune - KidsAstronomy.com Naiad is the closest moon to the surface of Neptune. Proteus is Neptune's second largest moon, but it is still not very big. Proteus was a god of the sea, capable of changing his shape. www.kidsastronomy.com /neptune/moons.htm   (469 words)

What are the Moons of Neptune? The largest moon in the Solar System with a retrograde ("backwards") orbit, Triton is thought to be a captured Kuiper belt object. Proteus, the second-largest moon of Neptune with a diameter of 440 km, is shaped like a cube with rounded edges. Proteus is also known to be one of the darkest surfaces in the Solar System, reflecting only 6% of incoming light. www.wisegeek.com /what-are-the-moons-of-neptune.htm   (429 words)

Proteus (moon) Proteus (proe'-tee-us, Greek Πρωτέας) is one of Neptune's moons. Proteus was first discovered by Harold J. Reitsema, William B. Hubbard, Larry A. Lebofsky and David J. Tholen based on ground-based stellar occultation observations on May 24, 1981, and given the temporary designation S/1981 N 1 (IAUC 3608). The moon was not recovered until the Voyager 2 flyby in 1989 when it received the designation S/1989 N 1. www.mlahanas.de /Greeks/Astro/Proteus.html   (260 words)

SPACE.com -- Collision Alert: Radar System May Open Skies for Unmanned Vehicles Proteus was originally designed by Burt Rutan of the Mojave, California-based company Scaled Composites, LLC to carry a telecommunications antenna. Aboard Proteus, the radar is expected to monitor a radius of at least 6 nautical miles (11 kilometers). Although Proteus will be flown from the ground, Alsbury and another pilot will ride in the plane as it encounters near-collisions with a variety of aircraft, ranging from a slow-pokey hot air balloon to the F/A 18 jet approaching at nearly 575 miles per hour (926 kilometers per hour). www.space.com /businesstechnology/technology/uav_proteus_030326a.html   (1258 words)

Proteus (mythology) - Search Results - MSN Encarta   (Site not responding. Last check: ) Proteus (mythology), in Greek mythology, son of Poseidon, god of the sea, or his attendant and the keeper of his seals. Proteus (astronomy), large satellite of the planet Neptune. Proteus is the sixth-furthest known moon from the planet. uk.encarta.msn.com /Proteus_(mythology).html   (98 words)

Nereid Moon   (Site not responding. Last check: ) moon was also found in 1989 and was noticed by the voyager 2 aswell. Proteus weight is 0.5kg and the distance from Neptune is 117.647km long. moon is causing planetary scientists to rethink their theories about the origin of the planet's... www.netactics.co.uk /nereid_moon.html   (344 words)

Sea and Sky's Tour of the Solar System: Other Neptunian Moons Galatea [gal-eh-TEE-eh] is the fourth of Neptune's moons. Proteus [PROH-tee-us] is the sixth of Neptune's moons and is the second largest. Proteus is larger than Nereid, but was discovered much later because it is so dark and so close to Neptune that it is difficult to spot in the planet's bright glare. www.seasky.org /solarsystem/sky3i3.html   (740 words)

APOD: November 4, 1995 - Neptune's Moon Proteus Explanation: Proteus is the second largest moon of Neptune behind the mysterious Triton. Proteus was not discovered sooner is that its surface is very dark and it orbits much closer to Neptune. Proteus has an odd box-like shape and were it even slightly more massive, its own gravity would cause it to reform itself into a sphere. antwrp.gsfc.nasa.gov /apod/ap951104.html   (119 words)

Neptune Report Proteus is the second moon of Neptune, by size. The last moon is Naiad, with a diameter of 58 kilometers and a distance from Neptune of 48,200 kilometers. Triton is half fish and half man. The origins of the second moon of the planet Neptune is that Proteus is known as the ìOld Man of the Seaî. www.skyhighway.com /~jamesrpw/neptune.html   (1954 words)

Globes Menu printable globes of mars and its moons phobos and deimos printable globes of saturn and its moons mimas, enceladus, tethys, dione, rhea and iapetus printable globes of uranus and its moons miranda, ariel, umbriel, titania and oberon homepage.mac.com /mayatech/globes/Menu20.html   (69 words)

Uranus Moons Miranda, Ariel, Umbriel, Titania & Oberon. - Forums powered by UBBThreads™ Hi, I understand that the moons of Uranus were named after characters in the literature of William Shakespear (Bill Shakespear in the USA and Canada) and Alexander Pope. http://home.case.edu/~sjr16/uranus_moons.html.All the moons of Uranus are from Shakespears drama. Proteus has two large depressions, but they are in the polar regions. uplink.space.com /showflat.php?Board=sciastro&Number=541409   (1149 words)

Online Book During a total lunar eclipse the Moon takes on a dark red color because it is being lighted slightly by sunlight passing through the Earth's atmosphere and this light has the blue component preferentially scattered out, leaving faint reddish light to illuminate the Moon during the eclipse. The surface of the Moon has two hemispheres with rather asymmetric properties; as a consequence the nature of the Lunar surface that we can see from the Earth is substantially different from the surface that is always hidden from the Earth. The fact that the rotational period of the Moon and the orbital period of the Earth-Moon system are of the same length is not an accident. www.midnightkite.com /all4.html   (8509 words)

Moons Their shape reflects their formation history, irregular objects are ill-formed moons or pieces of a larger moon, spherical objects were once molten spheres, probably at the time of their formation. Hyperion is one of the smaller moons of Saturn. Mimas is one of the innermost moons of Saturn with a very large impact crater that came close to fracturing the moon zebu.uoregon.edu /~js/ast121/lectures/TuTh/lec10.html   (2428 words)

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