Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Star> ?p ?o }
- Star abstract "A star is a luminous sphere of plasma held together by its own gravity. The nearest star to Earth is the Sun. Other stars are visible to the naked eye from Earth during the night, appearing as a multitude of fixed luminous points in the sky due to their immense distance from Earth. Historically, the most prominent stars were grouped into constellations and asterisms, and the brightest stars gained proper names. Extensive catalogues of stars have been assembled by astronomers, which provide standardized star designations.For at least a portion of its life, a star shines due to thermonuclear fusion of hydrogen into helium in its core, releasing energy that traverses the star's interior and then radiates into outer space. When the hydrogen in the core of a star is nearly exhausted, almost all naturally occurring elements heavier than helium are created by stellar nucleosynthesis during the star's lifetime and, for some stars, by supernova nucleosynthesis when it explodes. Near the end of its life, a star can also contain degenerate matter. Astronomers can determine the mass, age, metallicity (chemical composition), and many other properties of a star by observing its motion through space, luminosity, and spectrum respectively. The total mass of a star is the principal determinant of its evolution and eventual fate. Other characteristics of a star, including diameter and temperature, change over its life, while the star's environment affects its rotation and movement. A plot of the temperature of many stars against their luminosities, known as a Hertzsprung–Russell diagram (H–R diagram), allows the age and evolutionary state of a star to be determined.A star's life begins with the gravitational collapse of a gaseous nebula of material composed primarily of hydrogen, along with helium and trace amounts of heavier elements. When the stellar core is sufficiently dense, hydrogen becomes steadily converted into helium through nuclear fusion, releasing energy in the process. The remainder of the star's interior carries energy away from the core through a combination of radiative and convective processes. The star's internal pressure prevents it from collapsing further under its own gravity. When the hydrogen fuel at the core is exhausted, a star with at least 0.4 times the mass of the Sun expands to become a red giant, in some cases fusing heavier elements at the core or in shells around the core. The star then evolves into a degenerate form, recycling a portion of its matter into the interstellar environment, where it will contribute to the formation of a new generation of stars with a higher proportion of heavy elements. Meanwhile, the core becomes a stellar remnant: a white dwarf, a neutron star, or (if it is sufficiently massive) a black hole.Binary and multi-star systems consist of two or more stars that are gravitationally bound, and generally move around each other in stable orbits. When two such stars have a relatively close orbit, their gravitational interaction can have a significant impact on their evolution. Stars can form part of a much larger gravitationally bound structure, such as a star cluster or a galaxy.".
- Star thumbnail Starsinthesky.jpg?width=300.
- Star wikiPageExternalLink sim-fid.
- Star wikiPageExternalLink sow.html.
- Star wikiPageExternalLink stars.html.
- Star wikiPageExternalLink classifications.asp.
- Star wikiPageExternalLink Stars.html.
- Star wikiPageID "26808".
- Star wikiPageLength "121129".
- Star wikiPageOutDegree "501".
- Star wikiPageRevisionID "707487511".
- Star wikiPageWikiLink 14_Herculis.
- Star wikiPageWikiLink 2MASS_J0523-1403.
- Star wikiPageWikiLink 61_Cygni.
- Star wikiPageWikiLink Abd_al-Rahman_al-Sufi.
- Star wikiPageWikiLink Absolute_magnitude.
- Star wikiPageWikiLink Achernar.
- Star wikiPageWikiLink Age_of_the_universe.
- Star wikiPageWikiLink Al-Andalus.
- Star wikiPageWikiLink Al-Biruni.
- Star wikiPageWikiLink Albert_A._Michelson.
- Star wikiPageWikiLink Algol.
- Star wikiPageWikiLink Ali_ibn_Ridwan.
- Star wikiPageWikiLink Alpha_particle.
- Star wikiPageWikiLink Altair.
- Star wikiPageWikiLink Ancient_Greece.
- Star wikiPageWikiLink Ancient_Greek_astronomy.
- Star wikiPageWikiLink Ancient_Greek_philosophy.
- Star wikiPageWikiLink Ancient_Greek_religion.
- Star wikiPageWikiLink Andromeda_Galaxy.
- Star wikiPageWikiLink Angelo_Secchi.
- Star wikiPageWikiLink Angular_diameter.
- Star wikiPageWikiLink Angular_momentum.
- Star wikiPageWikiLink Annie_Jump_Cannon.
- Star wikiPageWikiLink Apparent_magnitude.
- Star wikiPageWikiLink Arabic.
- Star wikiPageWikiLink Aristyllus.
- Star wikiPageWikiLink Asterism_(astronomy).
- Star wikiPageWikiLink Astrology.
- Star wikiPageWikiLink Astronomer.
- Star wikiPageWikiLink Astronomical_spectroscopy.
- Star wikiPageWikiLink Astronomical_unit.
- Star wikiPageWikiLink Astronomy.
- Star wikiPageWikiLink Astronomy_in_the_medieval_Islamic_world.
- Star wikiPageWikiLink Asymptotic_giant_branch.
- Star wikiPageWikiLink Atomic_nucleus.
- Star wikiPageWikiLink Avempace.
- Star wikiPageWikiLink Babylon.
- Star wikiPageWikiLink Babylonian_astronomy.
- Star wikiPageWikiLink Babylonian_star_catalogues.
- Star wikiPageWikiLink Bayer_designation.
- Star wikiPageWikiLink Beryllium.
- Star wikiPageWikiLink Beta_particle.
- Star wikiPageWikiLink Betelgeuse.
- Star wikiPageWikiLink Binary_star.
- Star wikiPageWikiLink Binary_system.
- Star wikiPageWikiLink Binding_energy.
- Star wikiPageWikiLink Black_body.
- Star wikiPageWikiLink Black_dwarf.
- Star wikiPageWikiLink Black_hole.
- Star wikiPageWikiLink Blue_dwarf_(red-dwarf_stage).
- Star wikiPageWikiLink Blue_straggler.
- Star wikiPageWikiLink Bok_globule.
- Star wikiPageWikiLink Book_of_Fixed_Stars.
- Star wikiPageWikiLink Brightness.
- Star wikiPageWikiLink British_Library.
- Star wikiPageWikiLink Brocchis_Cluster.
- Star wikiPageWikiLink Brown_dwarf.
- Star wikiPageWikiLink Business.
- Star wikiPageWikiLink CNO_cycle.
- Star wikiPageWikiLink Canopus.
- Star wikiPageWikiLink Carbon.
- Star wikiPageWikiLink Carbon-12.
- Star wikiPageWikiLink Carbon-burning_process.
- Star wikiPageWikiLink Cataclysmic_variable_star.
- Star wikiPageWikiLink Catalysis.
- Star wikiPageWikiLink Category:Light_sources.
- Star wikiPageWikiLink Category:Stars.
- Star wikiPageWikiLink Category:Stellar_astronomy.
- Star wikiPageWikiLink Cecilia_Payne-Gaposchkin.
- Star wikiPageWikiLink Celestial_navigation.
- Star wikiPageWikiLink Celestial_spheres.
- Star wikiPageWikiLink Centimetre–gram–second_system_of_units.
- Star wikiPageWikiLink Cepheid_variable.
- Star wikiPageWikiLink Chemical_element.
- Star wikiPageWikiLink Chinese_astronomy.
- Star wikiPageWikiLink Chromium.
- Star wikiPageWikiLink Chromosphere.
- Star wikiPageWikiLink Civilization.
- Star wikiPageWikiLink Color_index.
- Star wikiPageWikiLink Common_envelope.
- Star wikiPageWikiLink Compact_star.
- Star wikiPageWikiLink Concentration.
- Star wikiPageWikiLink Conjunction_(astronomy).
- Star wikiPageWikiLink Constellation.
- Star wikiPageWikiLink Contact_binary.
- Star wikiPageWikiLink Convection.
- Star wikiPageWikiLink Convection_zone.
- Star wikiPageWikiLink Corona.
- Star wikiPageWikiLink Coronal_loop.