Matches in DBpedia 2016-04 for { <http://wikidata.dbpedia.org/resource/Q634> ?p ?o }
- Q634 subject Q2944685.
- Q634 subject Q6306516.
- Q634 subject Q8793753.
- Q634 abstract "A planet (REDIRECT Template:Etymology) is an astronomical object orbiting a star or stellar remnant that is massive enough to be rounded by its own gravity, is not massive enough to cause thermonuclear fusion, and has cleared its neighbouring region of planetesimals.The term planet is ancient, with ties to history, science, mythology, and religion. Several planets in the Solar System can be seen with the naked eye. These were regarded by many early cultures as divine, or as emissaries of deities. As scientific knowledge advanced, human perception of the planets changed, incorporating a number of disparate objects. In 2006, the International Astronomical Union (IAU) officially adopted a resolution defining planets within the Solar System. This definition is controversial because it excludes many objects of planetary mass based on where or what they orbit. Although eight of the planetary bodies discovered before 1950 remain "planets" under the modern definition, some celestial bodies, such as Ceres, Pallas, Juno and Vesta (each an object in the solar asteroid belt), and Pluto (the first trans-Neptunian object discovered), that were once considered planets by the scientific community, are no longer viewed as such.The planets were thought by Ptolemy to orbit Earth in deferent and epicycle motions. Although the idea that the planets orbited the Sun had been suggested many times, it was not until the 17th century that this view was supported by evidence from the first telescopic astronomical observations, performed by Galileo Galilei. By careful analysis of the observation data, Johannes Kepler found the planets' orbits were not circular but elliptical. As observational tools improved, astronomers saw that, like Earth, the planets rotated around tilted axes, and some shared such features as ice caps and seasons. Since the dawn of the Space Age, close observation by space probes has found that Earth and the other planets share characteristics such as volcanism, hurricanes, tectonics, and even hydrology.Planets are generally divided into two main types: large low-density giant planets, and smaller rocky terrestrials. Under IAU definitions, there are eight planets in the Solar System. In order of increasing distance from the Sun, they are the four terrestrials, Mercury, Venus, Earth, and Mars, then the four giant planets, Jupiter, Saturn, Uranus, and Neptune. Six of the planets are orbited by one or more natural satellites.More than two thousand planets around other stars ("extrasolar planets" or "exoplanets") have been discovered in the Milky Way: as of 22 February 2016, 2085 known extrasolar planets in 1331 planetary systems (including 509 multiple planetary systems), ranging in size from just above the size of the Moon to gas giants about twice as large as Jupiter. On December 20, 2011, the Kepler Space Telescope team reported the discovery of the first Earth-sized extrasolar planets, Kepler-20e and Kepler-20f, orbiting a Sun-like star, Kepler-20. A 2012 study, analyzing gravitational microlensing data, estimates an average of at least 1.6 bound planets for every star in the Milky Way.Around one in five Sun-like stars is thought to have an Earth-sized planet in its habitable zone.".
- Q634 thumbnail Mercury_in_color_-_Prockter07_centered.jpg?width=300.
- Q634 wikiPageExternalLink www.iau.org.
- Q634 wikiPageExternalLink STATUS_OF_PLUTO.238.0.html.
- Q634 wikiPageExternalLink photojournal.jpl.nasa.gov.
- Q634 wikiPageExternalLink planetquest.jpl.nasa.gov.
- Q634 wikiPageExternalLink planet_def.html.
- Q634 wikiPageExternalLink comparisons.html.
- Q634 wikiPageExternalLink www.psrd.hawaii.edu.
- Q634 wikiPageExternalLink STATUS_OF_PLUTO.238.0.html.
- Q634 wikiPageWikiLink Q101600.
- Q634 wikiPageWikiLink Q101609.
- Q634 wikiPageWikiLink Q101949.
- Q634 wikiPageWikiLink Q102205.
- Q634 wikiPageWikiLink Q1022422.
- Q634 wikiPageWikiLink Q1022867.
- Q634 wikiPageWikiLink Q102296.
- Q634 wikiPageWikiLink Q10261.
- Q634 wikiPageWikiLink Q1028022.
- Q634 wikiPageWikiLink Q103983.
- Q634 wikiPageWikiLink Q104499.
- Q634 wikiPageWikiLink Q105328.
- Q634 wikiPageWikiLink Q1056896.
- Q634 wikiPageWikiLink Q1061795.
- Q634 wikiPageWikiLink Q1067593.
- Q634 wikiPageWikiLink Q107.
- Q634 wikiPageWikiLink Q1070332.
- Q634 wikiPageWikiLink Q1073768.
- Q634 wikiPageWikiLink Q107486.
- Q634 wikiPageWikiLink Q107495.
- Q634 wikiPageWikiLink Q107509.
- Q634 wikiPageWikiLink Q107528.
- Q634 wikiPageWikiLink Q107534.
- Q634 wikiPageWikiLink Q107541.
- Q634 wikiPageWikiLink Q107548.
- Q634 wikiPageWikiLink Q107563.
- Q634 wikiPageWikiLink Q1078632.
- Q634 wikiPageWikiLink Q108193.
- Q634 wikiPageWikiLink Q10914393.
- Q634 wikiPageWikiLink Q109144.
- Q634 wikiPageWikiLink Q11063.
- Q634 wikiPageWikiLink Q111.
- Q634 wikiPageWikiLink Q112.
- Q634 wikiPageWikiLink Q1120735.
- Q634 wikiPageWikiLink Q1127701.
- Q634 wikiPageWikiLink Q112881.
- Q634 wikiPageWikiLink Q11344.
- Q634 wikiPageWikiLink Q1135397.
- Q634 wikiPageWikiLink Q11359.
- Q634 wikiPageWikiLink Q11362.
- Q634 wikiPageWikiLink Q11387.
- Q634 wikiPageWikiLink Q11406.
- Q634 wikiPageWikiLink Q11408.
- Q634 wikiPageWikiLink Q11412.
- Q634 wikiPageWikiLink Q11448.
- Q634 wikiPageWikiLink Q1150.
- Q634 wikiPageWikiLink Q1152983.
- Q634 wikiPageWikiLink Q11767.
- Q634 wikiPageWikiLink Q11772.
- Q634 wikiPageWikiLink Q11873.
- Q634 wikiPageWikiLink Q1189906.
- Q634 wikiPageWikiLink Q121750.
- Q634 wikiPageWikiLink Q122173.
- Q634 wikiPageWikiLink Q123524.
- Q634 wikiPageWikiLink Q123975.
- Q634 wikiPageWikiLink Q124013.
- Q634 wikiPageWikiLink Q12554.
- Q634 wikiPageWikiLink Q125551.
- Q634 wikiPageWikiLink Q1269129.
- Q634 wikiPageWikiLink Q1280098.
- Q634 wikiPageWikiLink Q128207.
- Q634 wikiPageWikiLink Q1296733.
- Q634 wikiPageWikiLink Q12989628.
- Q634 wikiPageWikiLink Q1306723.
- Q634 wikiPageWikiLink Q13082.
- Q634 wikiPageWikiLink Q1309635.
- Q634 wikiPageWikiLink Q131585.
- Q634 wikiPageWikiLink Q1319599.
- Q634 wikiPageWikiLink Q1323537.
- Q634 wikiPageWikiLink Q134270.
- Q634 wikiPageWikiLink Q134388.
- Q634 wikiPageWikiLink Q13516940.
- Q634 wikiPageWikiLink Q1364182.
- Q634 wikiPageWikiLink Q1367259.
- Q634 wikiPageWikiLink Q136930.
- Q634 wikiPageWikiLink Q1385430.
- Q634 wikiPageWikiLink Q1401124.
- Q634 wikiPageWikiLink Q140188.
- Q634 wikiPageWikiLink Q1418146.
- Q634 wikiPageWikiLink Q14265.
- Q634 wikiPageWikiLink Q14267.
- Q634 wikiPageWikiLink Q14279.
- Q634 wikiPageWikiLink Q1436016.
- Q634 wikiPageWikiLink Q1460138.
- Q634 wikiPageWikiLink Q14606370.
- Q634 wikiPageWikiLink Q148578.
- Q634 wikiPageWikiLink Q15040.