Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Pole_star> ?p ?o }
- Pole_star abstract "A pole star is a visible star, preferably a prominent one, that is approximately aligned with the Earth's axis of rotation; that is, a star whose apparent position is close to one of the celestial poles, and which lies approximately directly overhead when viewed from the Earth's North Pole or South Pole. A similar concept also applies to planets other than the Earth. In practice, the term pole star usually refers to Polaris, which is the current northern pole star, also known as the North Star.The south celestial pole lacks a bright star like Polaris to mark its position. At present, the naked-eye star nearest to this imaginary point is the faint Sigma Octantis, which is sometimes known as the South Star.While other stars' apparent positions in the sky change throughout the night, as they appear to rotate around the celestial poles, pole stars' apparent positions remain virtually fixed. This makes them especially useful in celestial navigation: they are a dependable indicator of the direction toward the respective geographic pole although not exact; they are virtually fixed, and their angle of elevation can also be used to determine latitude.The identity of the pole stars gradually changes over time because the celestial poles exhibit a slow continuous drift through the star field. The primary reason for this is the precession of the Earth's rotational axis, which causes its orientation to change over time. If the stars were fixed in space, precession would cause the celestial poles to trace out imaginary circles on the celestial sphere approximately once every 26,000 years, passing close to different stars at different times. In fact, the stars themselves also exhibit proper motion, which causes a very small additional apparent drift of pole stars.".
- Pole_star thumbnail Navisphere2.jpg?width=300.
- Pole_star wikiPageExternalLink GuidingLights.html.
- Pole_star wikiPageID "624705".
- Pole_star wikiPageLength "12524".
- Pole_star wikiPageOutDegree "109".
- Pole_star wikiPageRevisionID "706632239".
- Pole_star wikiPageWikiLink 15_Orionis.
- Pole_star wikiPageWikiLink 42_Draconis.
- Pole_star wikiPageWikiLink Aberration_of_light.
- Pole_star wikiPageWikiLink Achernar.
- Pole_star wikiPageWikiLink Alpha_Pictoris.
- Pole_star wikiPageWikiLink Ancient_Greece.
- Pole_star wikiPageWikiLink Angular_distance.
- Pole_star wikiPageWikiLink Apparent_magnitude.
- Pole_star wikiPageWikiLink Axial_precession.
- Pole_star wikiPageWikiLink Beta_Ursae_Minoris.
- Pole_star wikiPageWikiLink Big_Dipper.
- Pole_star wikiPageWikiLink Bortle_scale.
- Pole_star wikiPageWikiLink Canopus.
- Pole_star wikiPageWikiLink Category:Articles_containing_video_clips.
- Pole_star wikiPageWikiLink Category:Navigation.
- Pole_star wikiPageWikiLink Category:Pole_stars.
- Pole_star wikiPageWikiLink Category:Stars.
- Pole_star wikiPageWikiLink Celestial_equator.
- Pole_star wikiPageWikiLink Celestial_navigation.
- Pole_star wikiPageWikiLink Celestial_pole.
- Pole_star wikiPageWikiLink Celestial_sphere.
- Pole_star wikiPageWikiLink Chinese_mythology.
- Pole_star wikiPageWikiLink Circumpolar_star.
- Pole_star wikiPageWikiLink Constellation.
- Pole_star wikiPageWikiLink Crux.
- Pole_star wikiPageWikiLink Cygnus_(constellation).
- Pole_star wikiPageWikiLink Declination.
- Pole_star wikiPageWikiLink Delta_Doradus.
- Pole_star wikiPageWikiLink Delta_Octantis.
- Pole_star wikiPageWikiLink Delta_Velorum.
- Pole_star wikiPageWikiLink Deneb.
- Pole_star wikiPageWikiLink Dhruva.
- Pole_star wikiPageWikiLink Draco_(constellation).
- Pole_star wikiPageWikiLink Earth.
- Pole_star wikiPageWikiLink Epoch_(astronomy).
- Pole_star wikiPageWikiLink Equator.
- Pole_star wikiPageWikiLink Eta1_Doradus.
- Pole_star wikiPageWikiLink Eta_Ophiuchi.
- Pole_star wikiPageWikiLink Gamma_Cephei.
- Pole_star wikiPageWikiLink Gamma_Chamaeleontis.
- Pole_star wikiPageWikiLink Gamma_Cygni.
- Pole_star wikiPageWikiLink Gamma_Velorum.
- Pole_star wikiPageWikiLink Gemma_Frisius.
- Pole_star wikiPageWikiLink Giant_star.
- Pole_star wikiPageWikiLink Greek_Magical_Papyri.
- Pole_star wikiPageWikiLink Hawaiian_narrative.
- Pole_star wikiPageWikiLink Hindu_mythology.
- Pole_star wikiPageWikiLink History_of_Anglo-Saxon_England.
- Pole_star wikiPageWikiLink Hydrus.
- Pole_star wikiPageWikiLink I_Carinae.
- Pole_star wikiPageWikiLink Iota_Carinae.
- Pole_star wikiPageWikiLink Iota_Cephei.
- Pole_star wikiPageWikiLink Kappa_Velorum.
- Pole_star wikiPageWikiLink Kiopaa.
- Pole_star wikiPageWikiLink Late_Antiquity.
- Pole_star wikiPageWikiLink Latitude.
- Pole_star wikiPageWikiLink Light-year.
- Pole_star wikiPageWikiLink Light_pollution.
- Pole_star wikiPageWikiLink Mars.
- Pole_star wikiPageWikiLink Mercury_(planet).
- Pole_star wikiPageWikiLink Moon.
- Pole_star wikiPageWikiLink Myōken.
- Pole_star wikiPageWikiLink Naked_eye.
- Pole_star wikiPageWikiLink Navigation.
- Pole_star wikiPageWikiLink Neptune.
- Pole_star wikiPageWikiLink North_Pole.
- Pole_star wikiPageWikiLink Nutation.
- Pole_star wikiPageWikiLink Omega_Carinae.
- Pole_star wikiPageWikiLink Omicron_Draconis.
- Pole_star wikiPageWikiLink Polaris.
- Pole_star wikiPageWikiLink Poles_of_astronomical_bodies.
- Pole_star wikiPageWikiLink Precession.
- Pole_star wikiPageWikiLink Proper_motion.
- Pole_star wikiPageWikiLink Pytheas.
- Pole_star wikiPageWikiLink Roman_Empire.
- Pole_star wikiPageWikiLink Rotation_around_a_fixed_axis.
- Pole_star wikiPageWikiLink Saturn.
- Pole_star wikiPageWikiLink Sigma_Octantis.
- Pole_star wikiPageWikiLink South_Pole.
- Pole_star wikiPageWikiLink Star.
- Pole_star wikiPageWikiLink Stobaeus.
- Pole_star wikiPageWikiLink Thuban.
- Pole_star wikiPageWikiLink Upsilon_Carinae.
- Pole_star wikiPageWikiLink Uranus.
- Pole_star wikiPageWikiLink Ursa_Minor.
- Pole_star wikiPageWikiLink Vela_(constellation).
- Pole_star wikiPageWikiLink Venus.
- Pole_star wikiPageWikiLink Voyages_of_Christopher_Columbus.
- Pole_star wikiPageWikiLink Zhuanxu.
- Pole_star wikiPageWikiLink File:Navisphere2.jpg.
- Pole_star wikiPageWikiLink File:Polaris.ogg.
- Pole_star wikiPageWikiLink File:Precession_N.gif.
- Pole_star wikiPageWikiLink File:Precession_S.gif.