Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Near-Earth_object> ?p ?o }
- Near-Earth_object abstract "A near-Earth object (NEO) is a small Solar System body whose orbit brings it into proximity with Earth. All NEOs have a closest approach to the Sun (perihelion) of less than 1.3 astronomical unit (AU). They include about thirteen thousand near-Earth asteroids (NEAs), more than one hundred near-Earth comets (NECs), and a number of solar-orbiting spacecraft and meteoroids, large enough to be tracked in space before striking the Earth. It is now widely accepted that collisions in the past have had a significant role in shaping the geological and biological history of the planet. NEOs have become of increased interest since the 1980s because of increased awareness of the potential danger some of the asteroids or comets pose to Earth, and active mitigations are being researched.NEAs have orbits that lie partly between 0.983 and 1.3 AU away from the Sun. When an NEA is detected it is submitted to the IAU's Minor Planet Center for cataloging. Some NEAs ' orbits intersect that of Earth's so they pose a collision danger. The United States, European Union, and other nations are currently scanning for NEOs in an effort called Spaceguard.In the United States, NASA has a congressional mandate to catalogue all NEOs that are at least 1 kilometer wide, as the impact of such an object would be catastrophic. As of June 2015, there have been 872 NEAs larger than 1 km discovered, of which 153 are potentially hazardous. It was estimated in 2006 that 20% of the mandated objects have not yet been found. As a result of NEOWISE in 2011, it is estimated that 93% of the NEAs larger than 1 km have been found and that only about 70 remain to be discovered. Our inventory is much less complete for smaller objects, which still have potential for large scale damage.Potentially hazardous objects (PHOs) are currently defined based on parameters that measure the object's potential to make threatening close approaches to the Earth. Mostly objects with an Earth minimum orbit intersection distance (MOID) of 0.05 AU or less and an absolute magnitude (H) of 22.0 or brighter (a rough indicator of large size) are considered PHOs. Objects that cannot approach closer to the Earth (i.e. MOID) than 0.05 AU (7,500,000 km; 4,600,000 mi), or are smaller than about 150 m (500 ft) in diameter (i.e. H = 22.0 with assumed albedo of 13%), are not considered PHOs. The NASA Near Earth Object Catalog also includes the approach distances of asteroids and comets measured in lunar distances, and this usage has become a common unit of measure used by the news media in discussing these objects.Some NEOs are of high interest because they can be physically explored with lower mission velocity even than the Moon, due to their combination of low velocity with respect to Earth (ΔV) and small gravity, so they may present interesting scientific opportunities both for direct geochemical and astronomical investigation, and as potentially economical sources of extraterrestrial materials for human exploitation. This makes them an attractive target for exploration. As of 2012, three near-Earth objects have been visited by spacecraft: 433 Eros, by NASA's Near Earth Asteroid Rendezvous probe, 25143 Itokawa, by the JAXA Hayabusa mission, and 4179 Toutatis, by CNSA's Chang'e 2 spacecraft.".
- Near-Earth_object thumbnail Asteroid2006DP14.jpg?width=300.
- Near-Earth_object wikiPageExternalLink 455.pdf.
- Near-Earth_object wikiPageExternalLink teca.html.
- Near-Earth_object wikiPageExternalLink neo.jpl.nasa.gov.
- Near-Earth_object wikiPageExternalLink en.
- Near-Earth_object wikiPageExternalLink neo_map.html.
- Near-Earth_object wikiPageExternalLink LARI_display_asteroid_targets.php.
- Near-Earth_object wikiPageExternalLink toconfirm_tabular.html.
- Near-Earth_object wikiPageID "21626".
- Near-Earth_object wikiPageLength "48859".
- Near-Earth_object wikiPageOutDegree "212".
- Near-Earth_object wikiPageRevisionID "708226653".
- Near-Earth_object wikiPageWikiLink (29075)_1950_DA.
- Near-Earth_object wikiPageWikiLink (388188)_2006_DP14.
- Near-Earth_object wikiPageWikiLink (410777)_2009_FD.
- Near-Earth_object wikiPageWikiLink 1036_Ganymed.
- Near-Earth_object wikiPageWikiLink 1972_Great_Daylight_Fireball.
- Near-Earth_object wikiPageWikiLink 2004_FH.
- Near-Earth_object wikiPageWikiLink 2011_MD.
- Near-Earth_object wikiPageWikiLink 2014_EC.
- Near-Earth_object wikiPageWikiLink 2014_RC.
- Near-Earth_object wikiPageWikiLink 25143_Itokawa.
- Near-Earth_object wikiPageWikiLink 367943_Duende.
- Near-Earth_object wikiPageWikiLink 4179_Toutatis.
- Near-Earth_object wikiPageWikiLink 433_Eros.
- Near-Earth_object wikiPageWikiLink 4581_Asclepius.
- Near-Earth_object wikiPageWikiLink 6Q0B44E.
- Near-Earth_object wikiPageWikiLink 99942_Apophis.
- Near-Earth_object wikiPageWikiLink Absolute_magnitude.
- Near-Earth_object wikiPageWikiLink Air_burst.
- Near-Earth_object wikiPageWikiLink Albedo.
- Near-Earth_object wikiPageWikiLink Amor_asteroid.
- Near-Earth_object wikiPageWikiLink Apohele_asteroid.
- Near-Earth_object wikiPageWikiLink Apsis.
- Near-Earth_object wikiPageWikiLink Armagh_Observatory.
- Near-Earth_object wikiPageWikiLink Asiago-DLR_Asteroid_Survey.
- Near-Earth_object wikiPageWikiLink Asteroid.
- Near-Earth_object wikiPageWikiLink Asteroid_Day.
- Near-Earth_object wikiPageWikiLink Asteroid_Redirect_Mission.
- Near-Earth_object wikiPageWikiLink Asteroid_belt.
- Near-Earth_object wikiPageWikiLink Asteroid_capture.
- Near-Earth_object wikiPageWikiLink Asteroid_family.
- Near-Earth_object wikiPageWikiLink Asteroid_mining.
- Near-Earth_object wikiPageWikiLink Asteroid_spectral_types.
- Near-Earth_object wikiPageWikiLink Astronomical_unit.
- Near-Earth_object wikiPageWikiLink Aten_asteroid.
- Near-Earth_object wikiPageWikiLink Atomic_bombings_of_Hiroshima_and_Nagasaki.
- Near-Earth_object wikiPageWikiLink Campo_Imperatore_Near-Earth_Object_Survey.
- Near-Earth_object wikiPageWikiLink Catalina_Sky_Survey.
- Near-Earth_object wikiPageWikiLink Category:Articles_containing_video_clips.
- Near-Earth_object wikiPageWikiLink Category:Near-Earth_objects.
- Near-Earth_object wikiPageWikiLink Category:Planetary_defense.
- Near-Earth_object wikiPageWikiLink Change_2.
- Near-Earth_object wikiPageWikiLink Chelyabinsk_meteor.
- Near-Earth_object wikiPageWikiLink China_National_Space_Administration.
- Near-Earth_object wikiPageWikiLink Claimed_moons_of_Earth.
- Near-Earth_object wikiPageWikiLink Co-orbital_configuration.
- Near-Earth_object wikiPageWikiLink Comet.
- Near-Earth_object wikiPageWikiLink Comet_Encke.
- Near-Earth_object wikiPageWikiLink Comet_Swift–Tuttle.
- Near-Earth_object wikiPageWikiLink Culture.
- Near-Earth_object wikiPageWikiLink Czechoslovakia.
- Near-Earth_object wikiPageWikiLink Delta-v.
- Near-Earth_object wikiPageWikiLink Delta-v_budget.
- Near-Earth_object wikiPageWikiLink EURONEAR.
- Near-Earth_object wikiPageWikiLink Earth.
- Near-Earth_object wikiPageWikiLink Earth-grazing_fireball.
- Near-Earth_object wikiPageWikiLink Earth-grazing_meteoroid_of_13_October_1990.
- Near-Earth_object wikiPageWikiLink Emergence.
- Near-Earth_object wikiPageWikiLink European_Fireball_Network.
- Near-Earth_object wikiPageWikiLink European_Union.
- Near-Earth_object wikiPageWikiLink Evaporation.
- Near-Earth_object wikiPageWikiLink Expected_value.
- Near-Earth_object wikiPageWikiLink Extinct_comet.
- Near-Earth_object wikiPageWikiLink File:RQ36radar.jpg.
- Near-Earth_object wikiPageWikiLink Grand_Teton_National_Park.
- Near-Earth_object wikiPageWikiLink Hayabusa.
- Near-Earth_object wikiPageWikiLink Human_spaceflight.
- Near-Earth_object wikiPageWikiLink Impact_crater.
- Near-Earth_object wikiPageWikiLink Impact_event.
- Near-Earth_object wikiPageWikiLink International_Astronomical_Union.
- Near-Earth_object wikiPageWikiLink JAXA.
- Near-Earth_object wikiPageWikiLink JPL_Small-Body_Database.
- Near-Earth_object wikiPageWikiLink Japan_Spaceguard_Association.
- Near-Earth_object wikiPageWikiLink Jet_Propulsion_Laboratory.
- Near-Earth_object wikiPageWikiLink Jupiter.
- Near-Earth_object wikiPageWikiLink Kilometre.
- Near-Earth_object wikiPageWikiLink Kirkwood_gap.
- Near-Earth_object wikiPageWikiLink Kuiper_belt.
- Near-Earth_object wikiPageWikiLink Lincoln_Near-Earth_Asteroid_Research.
- Near-Earth_object wikiPageWikiLink List_of_Apollo_asteroids.
- Near-Earth_object wikiPageWikiLink List_of_Earth-crossing_minor_planets.
- Near-Earth_object wikiPageWikiLink List_of_asteroid_close_approaches_to_Earth.
- Near-Earth_object wikiPageWikiLink List_of_impact_craters_on_Earth.
- Near-Earth_object wikiPageWikiLink Little_Boy.
- Near-Earth_object wikiPageWikiLink Lowell_Observatory.
- Near-Earth_object wikiPageWikiLink Lowell_Observatory_Near-Earth-Object_Search.
- Near-Earth_object wikiPageWikiLink Lunar_distance_(astronomy).
- Near-Earth_object wikiPageWikiLink Mars.