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- Epsilon_Lupi abstract "Epsilon Lupi (ε Lup) is a multiple star system in the southern constellation of Lupus. At an apparent visual magnitude of 3.41, Epsilon Lupi can be readily viewed from the southern hemisphere with sufficiently dark skies. It is the fifth brightest star or star system in the constellation. Parallax measurements give a distance to this system of roughly 510 light-years (160 parsecs).This system is what astronomers term a double-lined spectroscopic binary. When the spectrum is examined, the absorption line features of both stars can be viewed. As a result of the Doppler effect, these lines shift back and forth in frequency as the two stars orbit around each other. This allows some of their orbital elements to be deduced, even though the individual stars have not been resolved with a telescope. The pair share a close, elliptical orbit with a period of 4.55970 days. The orbital eccentricity is 0.277, which means that at the separation at closest approach, or periapsis, is only 57% of the distance at their greatest separation, or apoapsis. There is a third, more distant companion at an angular separation of 26.5 arcseconds that may be orbiting the pair with a period of about 64 years.The pair that share the close orbit, Epsilon Lupi A and Epsilon Lupi a, have estimated masses of 13.24 and 11.46 times the mass of the Sun, respectively. The more distant component, Epsilon Lupi B, has a mass of about 7.64 times the Sun. The combined stellar classification of the system is B2 IV-V, while the individual components may have spectral classes of B3 IV, B3 V, and A5 V, in order of decreasing mass. The inner A-a pair appear to have their rate of spin synchronized with their orbit, so that the same face of each star always faces its partner. The secondary, Epsilon Lupi a, shows regular variation in luminosity of the type that occurs with Beta Cephei variables, at a periodicity of 10.36 cycles per day.This star system is a probable member of the Scorpius-Centaurus Association, a moving group of stars that originated together and share a similar trajectory through space.".
- Epsilon_Lupi thumbnail Lupus_IAU.svg?width=300.
- Epsilon_Lupi wikiPageID "34313723".
- Epsilon_Lupi wikiPageLength "6499".
- Epsilon_Lupi wikiPageOutDegree "35".
- Epsilon_Lupi wikiPageRevisionID "651379895".
- Epsilon_Lupi wikiPageWikiLink Absorption_line.
- Epsilon_Lupi wikiPageWikiLink Angular_distance.
- Epsilon_Lupi wikiPageWikiLink Angular_separation.
- Epsilon_Lupi wikiPageWikiLink Apoapsis.
- Epsilon_Lupi wikiPageWikiLink Apparent_magnitude.
- Epsilon_Lupi wikiPageWikiLink Apparent_visual_magnitude.
- Epsilon_Lupi wikiPageWikiLink Apsis.
- Epsilon_Lupi wikiPageWikiLink Arcsecond.
- Epsilon_Lupi wikiPageWikiLink Beta_Cephei_variable.
- Epsilon_Lupi wikiPageWikiLink Binary_star.
- Epsilon_Lupi wikiPageWikiLink Bortle_Dark-Sky_Scale.
- Epsilon_Lupi wikiPageWikiLink Bortle_scale.
- Epsilon_Lupi wikiPageWikiLink Bright_Star_Catalogue.
- Epsilon_Lupi wikiPageWikiLink Cape_Photographic_Durchmusterung.
- Epsilon_Lupi wikiPageWikiLink Category:B-type_main-sequence_stars.
- Epsilon_Lupi wikiPageWikiLink Category:Bayer_objects.
- Epsilon_Lupi wikiPageWikiLink Category:Lupus_(constellation).
- Epsilon_Lupi wikiPageWikiLink Constellation.
- Epsilon_Lupi wikiPageWikiLink Doppler_effect.
- Epsilon_Lupi wikiPageWikiLink Durchmusterung.
- Epsilon_Lupi wikiPageWikiLink Epoch_(astronomy).
- Epsilon_Lupi wikiPageWikiLink Henry_Draper_Catalogue.
- Epsilon_Lupi wikiPageWikiLink Hipparcos.
- Epsilon_Lupi wikiPageWikiLink J2000.0.
- Epsilon_Lupi wikiPageWikiLink List_of_stars_in_Lupus.
- Epsilon_Lupi wikiPageWikiLink Lupus_(constellation).
- Epsilon_Lupi wikiPageWikiLink Minute_and_second_of_arc.
- Epsilon_Lupi wikiPageWikiLink Moving_group.
- Epsilon_Lupi wikiPageWikiLink Orbital_eccentricity.
- Epsilon_Lupi wikiPageWikiLink Orbital_elements.
- Epsilon_Lupi wikiPageWikiLink Orbital_period.
- Epsilon_Lupi wikiPageWikiLink Parallax.
- Epsilon_Lupi wikiPageWikiLink Periapsis.
- Epsilon_Lupi wikiPageWikiLink Scorpius-Centaurus_Association.
- Epsilon_Lupi wikiPageWikiLink Scorpius–Centaurus_Association.
- Epsilon_Lupi wikiPageWikiLink Solar_mass.
- Epsilon_Lupi wikiPageWikiLink Spectral_line.
- Epsilon_Lupi wikiPageWikiLink Spectroscopic_binary.
- Epsilon_Lupi wikiPageWikiLink Spectrum.
- Epsilon_Lupi wikiPageWikiLink Star_catalogue.
- Epsilon_Lupi wikiPageWikiLink Star_system.
- Epsilon_Lupi wikiPageWikiLink Stellar_classification.
- Epsilon_Lupi wikiPageWikiLink Stellar_kinematics.
- Epsilon_Lupi wikiPageWikiLink File:Cercle_rouge_100%25.svg.
- Epsilon_Lupi wikiPageWikiLink File:Lupus_IAU.svg.
- Epsilon_Lupi wikiPageWikiLinkText "ε Lup".
- Epsilon_Lupi wikiPageWikiLinkText "ε Lupi".
- Epsilon_Lupi appmagV "3.41".
- Epsilon_Lupi bV "–0.195".
- Epsilon_Lupi class "B2 IV-V".
- Epsilon_Lupi constell Lupus_(constellation).
- Epsilon_Lupi epoch Epoch_(astronomy).
- Epsilon_Lupi epoch J2000.0.
- Epsilon_Lupi gravity "3.89".
- Epsilon_Lupi hasPhotoCollection Epsilon_Lupi.
- Epsilon_Lupi luminosityBolometric "3200".
- Epsilon_Lupi pError "0.7".
- Epsilon_Lupi parallax "6.37".
- Epsilon_Lupi propMoDec "−18.87".
- Epsilon_Lupi propMoRa "−22.86".
- Epsilon_Lupi radialV "+7.9".
- Epsilon_Lupi rotationalVelocity "133".
- Epsilon_Lupi temperature "19275".
- Epsilon_Lupi uB "–0.778".
- Epsilon_Lupi wikiPageUsesTemplate Template:Convert.
- Epsilon_Lupi wikiPageUsesTemplate Template:Reflist.
- Epsilon_Lupi wikiPageUsesTemplate Template:Starbox_astrometry.
- Epsilon_Lupi wikiPageUsesTemplate Template:Starbox_begin.
- Epsilon_Lupi wikiPageUsesTemplate Template:Starbox_catalog.
- Epsilon_Lupi wikiPageUsesTemplate Template:Starbox_character.
- Epsilon_Lupi wikiPageUsesTemplate Template:Starbox_detail.
- Epsilon_Lupi wikiPageUsesTemplate Template:Starbox_end.
- Epsilon_Lupi wikiPageUsesTemplate Template:Starbox_image.
- Epsilon_Lupi wikiPageUsesTemplate Template:Starbox_observe.
- Epsilon_Lupi wikiPageUsesTemplate Template:Stars_of_Lupus.
- Epsilon_Lupi subject Category:B-type_main-sequence_stars.
- Epsilon_Lupi subject Category:Bayer_objects.
- Epsilon_Lupi subject Category:Lupus_(constellation).
- Epsilon_Lupi hypernym System.
- Epsilon_Lupi type CelestialBody.
- Epsilon_Lupi type Place.
- Epsilon_Lupi type Star.
- Epsilon_Lupi type Catalogue.
- Epsilon_Lupi type Location.
- Epsilon_Lupi type Place.
- Epsilon_Lupi type Thing.
- Epsilon_Lupi comment "Epsilon Lupi (ε Lup) is a multiple star system in the southern constellation of Lupus. At an apparent visual magnitude of 3.41, Epsilon Lupi can be readily viewed from the southern hemisphere with sufficiently dark skies. It is the fifth brightest star or star system in the constellation. Parallax measurements give a distance to this system of roughly 510 light-years (160 parsecs).This system is what astronomers term a double-lined spectroscopic binary.".
- Epsilon_Lupi label "Epsilon Lupi".
- Epsilon_Lupi sameAs Épsilon_Lupi.
- Epsilon_Lupi sameAs Épsilon_Lupi.
- Epsilon_Lupi sameAs Epsilon_Lupi.
- Epsilon_Lupi sameAs Epsilon_Lupi.
- Epsilon_Lupi sameAs Epsilon_Lupi.
- Epsilon_Lupi sameAs Epsilon_Lupi.