Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/Sirius> ?p ?o }
- Sirius abstract "Sirius (/ˈsɪriəs/) is the brightest star (in fact, a star system) in the Earth's night sky. With a visual apparent magnitude of −1.46, it is almost twice as bright as Canopus, the next brightest star. The name \"Sirius\" is derived from the Ancient Greek Σείριος (Seirios), meaning \"glowing\" or \"scorcher\". The system has the Bayer designation Alpha Canis Majoris (α CMa). What the naked eye perceives as a single star is actually a binary star system, consisting of a white main-sequence star of spectral type A1V, termed Sirius A, and a faint white dwarf companion of spectral type DA2, called Sirius B. The distance separating Sirius A from its companion varies between 8.2 and 31.5 AU.Sirius appears bright because of both its intrinsic luminosity and its proximity to Earth. At a distance of 2.6 parsecs (8.6 ly), as determined by the Hipparcos astrometry satellite, the Sirius system is one of Earth's near neighbors. Sirius is gradually moving closer to the Solar System, so it will slightly increase in brightness over the next 60,000 years. After that time its distance will begin to increase and it will become fainter, but it will continue to be the brightest star in the Earth's sky for the next 210,000 years.Sirius A is about twice as massive as the Sun (M☉) and has an absolute visual magnitude of 1.42. It is 25 times more luminous than the Sun but has a significantly lower luminosity than other bright stars such as Canopus or Rigel. The system is between 200 and 300 million years old. It was originally composed of two bright bluish stars. The more massive of these, Sirius B, consumed its resources and became a red giant before shedding its outer layers and collapsing into its current state as a white dwarf around 120 million years ago.Sirius is also known colloquially as the \"Dog Star\", reflecting its prominence in its constellation, Canis Major (Greater Dog). The heliacal rising of Sirius marked the flooding of the Nile in Ancient Egypt and the \"dog days\" of summer for the ancient Greeks, while to the Polynesians in the Southern Hemisphere the star marked winter and was an important reference for their navigation around the Pacific Ocean.".
- Sirius thumbnail Canis_Major_constellation_map.svg?width=300.
- Sirius wikiPageExternalLink sim-id?Ident=name+sirius+a.
- Sirius wikiPageExternalLink sim-id?Ident=name+sirius+b.
- Sirius wikiPageExternalLink ap001006.html.
- Sirius wikiPageExternalLink sirius_part2.html.
- Sirius wikiPageExternalLink siriustime.html.
- Sirius wikiPageID "28017".
- Sirius wikiPageLength "80448".
- Sirius wikiPageOutDegree "342".
- Sirius wikiPageRevisionID "707324491".
- Sirius wikiPageWikiLink A_Treatise_on_the_Astrolabe.
- Sirius wikiPageWikiLink Absolute_magnitude.
- Sirius wikiPageWikiLink Achilles.
- Sirius wikiPageWikiLink Aegean_Sea.
- Sirius wikiPageWikiLink Aitken_Double_Star_Catalogue.
- Sirius wikiPageWikiLink Aldebaran.
- Sirius wikiPageWikiLink Alfred,_Lord_Tennyson.
- Sirius wikiPageWikiLink Almagest.
- Sirius wikiPageWikiLink Alpha.
- Sirius wikiPageWikiLink Alpha_Centauri.
- Sirius wikiPageWikiLink Alpha_Coronae_Borealis.
- Sirius wikiPageWikiLink Alvan_Graham_Clark.
- Sirius wikiPageWikiLink Am_star.
- Sirius wikiPageWikiLink Ancient_Egypt.
- Sirius wikiPageWikiLink Ancient_Greece.
- Sirius wikiPageWikiLink Ancient_Greek.
- Sirius wikiPageWikiLink Antares.
- Sirius wikiPageWikiLink Apaosha.
- Sirius wikiPageWikiLink Apparent_magnitude.
- Sirius wikiPageWikiLink Apsis.
- Sirius wikiPageWikiLink Aratus.
- Sirius wikiPageWikiLink Archaic_Greece.
- Sirius wikiPageWikiLink Arcturus.
- Sirius wikiPageWikiLink Astrolabe.
- Sirius wikiPageWikiLink Astrology.
- Sirius wikiPageWikiLink Astrometry.
- Sirius wikiPageWikiLink Astronomical_interferometer.
- Sirius wikiPageWikiLink Astronomical_unit.
- Sirius wikiPageWikiLink Astronomy.
- Sirius wikiPageWikiLink Avesta.
- Sirius wikiPageWikiLink Avestan.
- Sirius wikiPageWikiLink Avienus.
- Sirius wikiPageWikiLink Bayer_designation.
- Sirius wikiPageWikiLink Behenian_fixed_star.
- Sirius wikiPageWikiLink Bering_Strait.
- Sirius wikiPageWikiLink Beryl.
- Sirius wikiPageWikiLink Beta_Aurigae.
- Sirius wikiPageWikiLink Beta_Crateris.
- Sirius wikiPageWikiLink Beta_Eridani.
- Sirius wikiPageWikiLink Beta_Serpentis.
- Sirius wikiPageWikiLink Betelgeuse.
- Sirius wikiPageWikiLink Binary_star.
- Sirius wikiPageWikiLink Blackfoot_Confederacy.
- Sirius wikiPageWikiLink Bright_Star_Catalogue.
- Sirius wikiPageWikiLink CNO_cycle.
- Sirius wikiPageWikiLink Cangin_languages.
- Sirius wikiPageWikiLink Canis_Major.
- Sirius wikiPageWikiLink Canopus.
- Sirius wikiPageWikiLink Cape_of_Good_Hope.
- Sirius wikiPageWikiLink Category:A-type_main-sequence_stars.
- Sirius wikiPageWikiLink Category:Astronomical_objects_known_since_antiquity.
- Sirius wikiPageWikiLink Category:Bayer_objects.
- Sirius wikiPageWikiLink Category:Binary_stars.
- Sirius wikiPageWikiLink Category:Canis_Major_(constellation).
- Sirius wikiPageWikiLink Category:Durchmusterung_objects.
- Sirius wikiPageWikiLink Category:Flamsteed_objects.
- Sirius wikiPageWikiLink Category:Gliese_and_GJ_objects.
- Sirius wikiPageWikiLink Category:HR_objects.
- Sirius wikiPageWikiLink Category:Henry_Draper_Catalogue_objects.
- Sirius wikiPageWikiLink Category:Hipparcos_objects.
- Sirius wikiPageWikiLink Category:Mythological_dogs.
- Sirius wikiPageWikiLink Category:Stars_with_proper_names.
- Sirius wikiPageWikiLink Category:White_dwarfs.
- Sirius wikiPageWikiLink Chandra_X-ray_Observatory.
- Sirius wikiPageWikiLink Charles_Lindbergh.
- Sirius wikiPageWikiLink Cherokee.
- Sirius wikiPageWikiLink Chinese_astronomy.
- Sirius wikiPageWikiLink Christiaan_Huygens.
- Sirius wikiPageWikiLink Cicero.
- Sirius wikiPageWikiLink Circumpolar_star.
- Sirius wikiPageWikiLink Constellation.
- Sirius wikiPageWikiLink Convection_zone.
- Sirius wikiPageWikiLink Current_Anthropology.
- Sirius wikiPageWikiLink Dante_Alighieri.
- Sirius wikiPageWikiLink Dearborn_Observatory.
- Sirius wikiPageWikiLink Declination.
- Sirius wikiPageWikiLink Dendera.
- Sirius wikiPageWikiLink Dendera_Temple_complex.
- Sirius wikiPageWikiLink Dog_days.
- Sirius wikiPageWikiLink Dogon_people.
- Sirius wikiPageWikiLink Duat.
- Sirius wikiPageWikiLink Durchmusterung.
- Sirius wikiPageWikiLink Earth.
- Sirius wikiPageWikiLink Edmond_Halley.
- Sirius wikiPageWikiLink Egyptian_calendar.
- Sirius wikiPageWikiLink Ejnar_Hertzsprung.
- Sirius wikiPageWikiLink Energy_(esotericism).
- Sirius wikiPageWikiLink Epoch_(astronomy).
- Sirius wikiPageWikiLink Eta_Carinae.