NationMaster - Encyclopedia: 4660 Nereus

4660 Nereus is a small (1 km in diameter) asteroid, discovered by Eleanor F. Helin on February 28, 1982. It is named after Nereus, a Titan in Greek mythology. Eleanor Francis Helin is an American astronomer, principal investigator of the Near Earth Asteroid Tracking (NEAT) program of NASAs Jet Propulsion Laboratory. ... Jump to: navigation, search February 28 is the 59th day of the year in the Gregorian calendar. ... Jump to: navigation, search 1982 (MCMLXXXII) is a common year starting on Friday of the Gregorian calendar. ... Nereus: in Greek Mythology, eldest son of Pontus and Gaia, the Sea and the Earth. ... In Greek mythology, the Titans (Greek Î¤Î¹Ï„Î±Î½, plural Î¤Î¹Ï„Î±Î½ÎµÏ‚) are among a series of gods, some of whom opposed Zeus and the Olympian gods in their ascent to power. ... Jump to: navigation, search Greek mythology comprises the collected narratives of Greek gods, goddesses, heroes, and heroines, originally created and spread within an oral-poetic tradition. ...

Nereus is potentially a very important asteroid. It is an Apollo and Mars-crosser asteroid, with an orbit that frequently comes very close to Earth, and because of this it is exceptionally accessible to spacecraft. Indeed, because of its small size, its delta-V for rendezvous is smaller than the Moon's. Jump to: navigation, search An asteroid is a small, solid object in our Solar System, orbiting the Sun. ... The Apollo asteroids are a group of near-Earth asteroids named after 1862 Apollo, the first asteroid of this group to be discovered. ... A Mars-crosser asteroid is an asteroid whose orbit crosses that of Mars. ... In physics, an orbit is the path that an object makes, around another object, whilst under the influence of a source of centripetal force, such as gravity. ... Earth, also known as the Earth or Terra, is the third planet outward from the Sun. ... General In general physics delta-v is simply the change in velocity. ... Jump to: navigation, search Crust composition Oxygen 43% Silicon 21% Aluminium 10% Calcium 9% Iron 9% Magnesium 5% Titanium 2% Nickel 0. ...

Nereus was scheduled for visitation by both the private Near Earth Asteroid Prospector probe, and the Japanese Hayabusa probe. However, the former project is defunct, and Hayabusa's delay in launching caused it to be redirected to 25143 Itokawa. Nonetheless, Nereus may well become important in future space exploration. Hayabusa (ã¯ã‚„ã¶ã• - peregrine falcon) is an unmanned space mission led by the Japan Aerospace Exploration Agency to collect a sample of material from a small near-Earth asteroid named 25143 Itokawa (dimensions 0. ... Hayabusa (ã¯ã‚„ã¶ã• - peregrine falcon) is an unmanned space mission led by the Japan Aerospace Exploration Agency to collect a sample of material from a small near-Earth asteroid named 25143 Itokawa (dimensions 0. ... 25143 Itokawa is an Apollo and Mars-crosser asteroid. ...

Nereus has been imaged by radar, which reveals a slightly elongated shape. Jump to: navigation, search This long range radar antenna (approximately 40m (130ft) in diameter) rotates on a track to observe activities near the horizon. ...

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Category: Apollo asteroids Jump to: navigation, search Minor planets, or planetoids are minor bodies of the Solar system orbiting the Sun (or of other planetary systems orbiting other stars) that are larger than meteoroids (the largest of which might be taken to be around 10 meters or so across) but smaller than major... Vulcanoids are hypothetical asteroids that may orbit in a dynamically stable zone between 0. ... The asteroid belt is a region of the solar system falling roughly between the planets Mars and Jupiter where the greatest concentration of asteroid orbits can be found. ... Jump to: navigation, search Near-Earth objects (NEO) are asteroids, comets and large meteoroids whose orbit intersects Earths orbit and which may therefore pose a collision danger. ... Image of the Trojan asteroids in front of and behind Jupiter along its orbital path. ... The centaurs are a class of icy planetoids that orbit the Sun between Jupiter and Neptune, named after the mythical race of centaurs. ... Damocloids are asteroids such as 5335 Damocles and (16746) 1996 PW that have long-period highly eccentric orbits typical of periodic comets such as 1P/Halley, but without showing a cometary coma or tail. ... Photo of the comet Hale-Bopp above a tree. ... A trans-Neptunian object (TNO) is any object in the solar system which orbits the sun at a greater distance on average than Neptune. ... Artists rendering of the Kuiper Belt and more distant Oort cloud. ... The scattered disc (or scattered disk) is a distant region of our solar system, thinly populated by a subset of the family of trans-Neptunian objects known as scattered disk objects (SDOs). ... Jump to: navigation, search This image is an artists rendering of the Oort cloud and the Kuiper Belt. ... 243 Ida and its moon Dactyl An asteroid moon is an asteroid that orbits another asteroid. ... Jump to: navigation, search Presentation of the solar system (not to scale) The solar system is the retinue of objects gravitationally bound to our Sun. ... This is a list of numbered asteroids, in sequential order. ... This page alphabetically lists the first thousand asteroids to be numbered, which are mostly in the main belt. ...