Matches in DBpedia 2014 for { <http://dbpedia.org/resource/Sigma_Orionis> ?p ?o. }
Showing items 1 to 59 of
59
with 100 items per page.
- Sigma_Orionis abstract "Sigma Orionis or Sigma Ori (σ Orionis, σ Ori) is a five-star system in the constellation Orion, just to the southwest of Alnitak. It is approximately 1,150 light years from Earth.The primary component is the binary Sigma Orionis AB, with the two stars being a mere 0.25 arcseconds apart. Both stars are hydrogen-fusing dwarfs only a few million years old. The brighter one, Sigma Orionis A, is a blue O-type star with an apparent visual magnitude of +4.2. Sigma Orionis B is a B-type star with an apparent visual magnitude of +5.1. The pair orbit each other every 170 years at a distance of about 90 AU. A and B have very hot surfaces, around 32,000 and 29,600 kelvins, radiating at about 35,000 and 30,000 solar luminosities, respectively. Temperature and luminosity give masses of 18 and 13.5 solar masses, making the close AB pair among the most massive of visual binaries.The next brightest stars in the system are Sigma Orionis D and E, which lie about 4,600 and 15,000 AU respectively from the AB pair. Both are seven solar mass B-type dwarf stars with magnitudes of 6.62 and 6.66. Sigma Orionis E is a prototype of the strange "helium-rich" stars, which have significantly large amounts of helium.The last star in the system is Sigma Orionis C, an A-type dwarf star. C is the closest to the AB pair, about 3,900 AU away.While the orbit of the AB pair is stable, the orbits of the other three are not, and long before they die they will probably be gravitationally sped up and forced out of the system.".
- Sigma_Orionis thumbnail The_region_of_Orion’s_Belt_and_the_Flame_Nebula.jpg?width=300.
- Sigma_Orionis wikiPageID "3991369".
- Sigma_Orionis wikiPageRevisionID "567499522".
- Sigma_Orionis appmagV "4.2".
- Sigma_Orionis bV "?/?/−0.02/−0.20/−0.18".
- Sigma_Orionis class "O9V/B0.5V/A2V/B2V/B2Vp".
- Sigma_Orionis constell Orion_(constellation).
- Sigma_Orionis date "April 2013".
- Sigma_Orionis dec "−2° 36' 00.0"".
- Sigma_Orionis epoch "J2000".
- Sigma_Orionis hasPhotoCollection Sigma_Orionis.
- Sigma_Orionis ra "20324.8".
- Sigma_Orionis reason "How? Where can we read an explanation of this process?".
- Sigma_Orionis uB "?/?/−0.25/−0.87/−0.86".
- Sigma_Orionis variable "No/No/No/No/Yes".
- Sigma_Orionis subject Category:A-type_main-sequence_stars.
- Sigma_Orionis subject Category:B-type_main-sequence_stars.
- Sigma_Orionis subject Category:Multiple_star_systems.
- Sigma_Orionis subject Category:O-type_main-sequence_stars.
- Sigma_Orionis subject Category:Orion_(constellation).
- Sigma_Orionis type A-typeMainSequenceStars.
- Sigma_Orionis type B-typeMainSequenceStars.
- Sigma_Orionis type CelestialBody109239740.
- Sigma_Orionis type NaturalObject100019128.
- Sigma_Orionis type O-typeMainSequenceStars.
- Sigma_Orionis type Object100002684.
- Sigma_Orionis type PhysicalEntity100001930.
- Sigma_Orionis type Star109444100.
- Sigma_Orionis type Whole100003553.
- Sigma_Orionis type CelestialBody.
- Sigma_Orionis type Star.
- Sigma_Orionis type PhysicalBody.
- Sigma_Orionis comment "Sigma Orionis or Sigma Ori (σ Orionis, σ Ori) is a five-star system in the constellation Orion, just to the southwest of Alnitak. It is approximately 1,150 light years from Earth.The primary component is the binary Sigma Orionis AB, with the two stars being a mere 0.25 arcseconds apart. Both stars are hydrogen-fusing dwarfs only a few million years old. The brighter one, Sigma Orionis A, is a blue O-type star with an apparent visual magnitude of +4.2.".
- Sigma_Orionis label "Sigma Orionis".
- Sigma_Orionis label "Sigma Orionis".
- Sigma_Orionis label "Sigma Orionis".
- Sigma_Orionis label "Sigma Orionis".
- Sigma_Orionis label "Sigma Orionis".
- Sigma_Orionis label "Sigma Orionis".
- Sigma_Orionis label "Sigma Orionis".
- Sigma_Orionis label "オリオン座シグマ星".
- Sigma_Orionis label "參宿增一".
- Sigma_Orionis sameAs Sigma_Orionis.
- Sigma_Orionis sameAs Sigma_Orionis.
- Sigma_Orionis sameAs Sigma_Orionis.
- Sigma_Orionis sameAs Sigma_Orionis.
- Sigma_Orionis sameAs オリオン座シグマ星.
- Sigma_Orionis sameAs 오리온자리_시그마.
- Sigma_Orionis sameAs Sigma_Orionis.
- Sigma_Orionis sameAs Sigma_Orionis.
- Sigma_Orionis sameAs m.0bbfcd.
- Sigma_Orionis sameAs Q14224.
- Sigma_Orionis sameAs Q14224.
- Sigma_Orionis sameAs Sigma_Orionis.
- Sigma_Orionis wasDerivedFrom Sigma_Orionis?oldid=567499522.
- Sigma_Orionis depiction The_region_of_Orion’s_Belt_and_the_Flame_Nebula.jpg.
- Sigma_Orionis isPrimaryTopicOf Sigma_Orionis.
- Sigma_Orionis name "Sigma Orionis A/B/C/D/E".
