[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/83-ursae-majoris-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki40\/83-ursae-majoris-wikipedia\/","headline":"83 Ursae Majoris – Wikipedia","name":"83 Ursae Majoris – Wikipedia","description":"From Wikipedia, the free encyclopedia Candidate binary star system in the constellation Ursa Major 83 Ursae Majoris is a candidate","datePublished":"2019-03-06","dateModified":"2019-03-06","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki40\/author\/lordneo\/","image":{"@type":"ImageObject","@id":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","url":"https:\/\/secure.gravatar.com\/avatar\/c9645c498c9701c88b89b8537773dd7c?s=96&d=mm&r=g","height":96,"width":96}},"publisher":{"@type":"Organization","name":"Enzyklop\u00e4die","logo":{"@type":"ImageObject","@id":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","url":"https:\/\/wiki.edu.vn\/wiki4\/wp-content\/uploads\/2023\/08\/download.jpg","width":600,"height":60}},"image":{"@type":"ImageObject","@id":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","url":"https:\/\/en.wikipedia.org\/wiki\/Special:CentralAutoLogin\/start?type=1x1","height":"1","width":"1"},"url":"https:\/\/wiki.edu.vn\/en\/wiki40\/83-ursae-majoris-wikipedia\/","about":["Wiki"],"wordCount":3710,"articleBody":"From Wikipedia, the free encyclopediaCandidate binary star system in the constellation Ursa Major83 Ursae Majoris is a candidate binary star[11] system in the northern circumpolar constellation of Ursa Major. It is a semiregular variable star, and it has been given the variable star designation IQ Ursae Majoris. It ranges in brightness from apparent visual magnitude 4.69 to 4.75.[3] Percy and Au (1994) identified it as a small amplitude red variable with an irregular behavior, having a characteristic time scale of 20 days.[12] Based upon an annual parallax shift of 6.23\u00b10.22\u00a0mas,[2] it is located roughly 520\u00a0light years from the Sun. The distance derived from its Gaia Early Data Release 3 parallax is 179\u00a0pc.[13]  The system is moving closer with a heliocentric radial velocity of \u221218.6[6]\u00a0km\/s.The visible component is an evolved red giant with a stellar classification of M2\u00a0III.[4] It is a marginal barium star, showing an enhanced abundance of s-process elements in its outer atmosphere. This material may have been acquired during a previous mass transfer from a now white dwarf companion, or self-enriched by a dredge-up during the asymptotic giant branch process.[14]References[edit]^ “Hipparcos Tools Interactive Data Access”. Hipparcos. ESA. Retrieved 8 December 2021.^ a b c d e f van Leeuwen, F. (2007), “Validation of the new Hipparcos reduction”, Astronomy and Astrophysics, 474 (2): 653\u2013664, arXiv:0708.1752, Bibcode:2007A&A…474..653V, doi:10.1051\/0004-6361:20078357, S2CID\u00a018759600.^ a b c Samus, N. N.;  et\u00a0al. (2017), “General Catalogue of Variable Stars: Version GCVS 5.1”, Astronomy Reports, 61 (1): 80\u201388, Bibcode:2017ARep…61…80S, doi:10.1134\/S1063772917010085, S2CID\u00a0125853869.^ a b Keenan, Philip C.; McNeil, Raymond C. (1989), “The Perkins catalog of revised MK types for the cooler stars”, The Astrophysical Journal Supplement Series, 71: 245, Bibcode:1989ApJS…71..245K, doi:10.1086\/191373.^ a b Anderson, E.; Francis, Ch. (2012), “XHIP: An extended hipparcos compilation”, Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL…38..331A, doi:10.1134\/S1063773712050015, S2CID\u00a0119257644.^ a b De Bruijne, J. H. J.; Eilers, A.-C. (2012), “Radial velocities for the HIPPARCOS-Gaia Hundred-Thousand-Proper-Motion project”, Astronomy & Astrophysics, 546: A61, arXiv:1208.3048, Bibcode:2012A&A…546A..61D, doi:10.1051\/0004-6361\/201219219, S2CID\u00a059451347.^ a b c d Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevi\u010d, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-G\u00f3mez, M.; Minchev, I.; de Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (August 2019), “Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18”, Astronomy & Astrophysics, 628: A94, arXiv:1904.11302, Bibcode:2019A&A…628A..94A, doi:10.1051\/0004-6361\/201935765, ISSN\u00a00004-6361.^ Stassun, Keivan G.;  et\u00a0al. (2019-10-01), “The Revised TESS Input Catalog and Candidate Target List”, The Astronomical Journal, 158 (4): 138, arXiv:1905.10694, Bibcode:2019AJ….158..138S, doi:10.3847\/1538-3881\/ab3467, hdl:1721.1\/124721, ISSN\u00a00004-6256, S2CID\u00a0166227927.^ Chandler, Colin Orion; McDonald, Iain; Kane, Stephen R. (2016), “The Catalog of Earth-Like Exoplanet Survey Targets (CELESTA): A Database of Habitable Zones Around Nearby Stars”, The Astronomical Journal, 151 (3): 59, arXiv:1510.05666, Bibcode:2016AJ….151…59C, doi:10.3847\/0004-6256\/151\/3\/59, S2CID\u00a0119246448.^ “83 UMa”. SIMBAD. Centre de donn\u00e9es astronomiques de Strasbourg. Retrieved 2018-03-31.^ Eggleton, P. P.; Tokovinin, A. A. (September 2008), “A catalogue of multiplicity among bright stellar systems”, Monthly Notices of the Royal Astronomical Society, 389 (2): 869\u2013879, arXiv:0806.2878, Bibcode:2008MNRAS.389..869E, doi:10.1111\/j.1365-2966.2008.13596.x, S2CID\u00a014878976.^ Percy, John R.; Au, Winnie (November 1994), “APT Observations of Small-Amplitude Red Variables”, Information Bulletin on Variable Stars, 4114: 1, Bibcode:1994IBVS.4114….1P.^ Bailer-Jones, C. A. L.; Rybizki, J.; Fouesneau, M.; Demleitner, M.; Andrae, R. (2021), “Estimating Distances from Parallaxes. V. Geometric and Photogeometric Distances to 1.47 Billion Stars in Gaia Early Data Release 3”, The Astronomical Journal, 161 (3): 147, arXiv:2012.05220, Bibcode:2021AJ….161..147B, doi:10.3847\/1538-3881\/abd806, S2CID\u00a0228063812.^ Gomez, A. E.;  et\u00a0al. (1997), “Absolute magnitudes and kinematics of barium stars”, Astronomy and Astrophysics, 319: 881, Bibcode:1997A&A…319..881G.External links[edit]"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki40\/83-ursae-majoris-wikipedia\/#breadcrumbitem","name":"83 Ursae Majoris – Wikipedia"}}]}]