[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/hd-37756-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki24\/hd-37756-wikipedia\/","headline":"HD 37756 – Wikipedia","name":"HD 37756 – Wikipedia","description":"before-content-x4 From Wikipedia, the free encyclopedia after-content-x4 Binary star system in the constellation Orion HD 37756 is a binary star","datePublished":"2022-12-23","dateModified":"2022-12-23","author":{"@type":"Person","@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/author\/lordneo\/#Person","name":"lordneo","url":"https:\/\/wiki.edu.vn\/en\/wiki24\/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:\/\/www.wikimedia.org\/static\/images\/wmf-logo.png","url":"https:\/\/www.wikimedia.org\/static\/images\/wmf-logo.png","height":"101","width":"135"},"url":"https:\/\/wiki.edu.vn\/en\/wiki24\/hd-37756-wikipedia\/","about":["Wiki"],"wordCount":3976,"articleBody":"     (adsbygoogle = window.adsbygoogle || []).push({});before-content-x4From Wikipedia, the free encyclopedia       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Binary star system in the constellation OrionHD 37756 is a binary star system in the equatorial constellation of Orion, positioned less than a degree to the north of the bright star Alnitak.[13] It has a blue-white hue and is faintly visible to the naked eye with an apparent visual magnitude of 4.95.[2] The system is located at a distance of approximately 900\u00a0light years from the Sun based on parallax,[1] and is drifting further away with a radial velocity of +26\u00a0km\/s.[6] It is a member of the OB1b subgroup of the Orion OB1 association.[14]       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4The binary nature of this system was identified by E. B. Frost in 1904.[15] It is a double-lined spectroscopic binary with an orbital period of 27.15\u00a0days and a high eccentricity of 0.74.[7] The spectrum matches a massive B-type main-sequence star with a stellar classification of B3V.[4] The secondary is luminous enough to interfere with measurements of the primary spectrum.[15] It is a suspected Cepheid variable with a period of 0.37968\u00a0days and an amplitude of 0.03 magnitude in the B band of the UBV photometric system.[16] The system is a candidate eclipsing binary with a minimum dip of 0.04 in visual magnitude during each orbit.[17]References[edit]^ 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. Vizier catalog entry^ a b c 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. Vizier catalog entry^ Hoffleit, D.; Warren, W. H. (1995). “Bright Star Catalogue”. VizieR On-line Data Catalog: V\/50. Originally Published in: 1964BS….C……0H (5th Revised\u00a0ed.). 5050. Bibcode:1995yCat.5050….0H.^ a b Houk, N.; Swift, C. (1999). “Michigan catalogue of two-dimensional spectral types for the HD Stars”. Michigan Spectral Survey. 5. Bibcode:1999MSS…C05….0H.^ a b Mallama, A. (2014). “Sloan Magnitudes for the Brightest Stars”. The Journal of the American Association of Variable Star Observers. 42 (2): 443. Bibcode:2014JAVSO..42..443M.Vizier catalog entry^ a b Wilson, R. E. (1953). “General Catalogue of Stellar Radial Velocities”. Carnegie Institute Washington D.C. Publication. Carnegie Institution for Science. Bibcode:1953GCRV..C……0W. LCCN\u00a054001336.^ a b Hilditch, R. W.;  et\u00a0al. (February 1991). “The eccentric-orbit binaries Iota Orionis and HD 1952: a cautionary tale”. The Observatory. 111: 14\u201320. Bibcode:1991Obs…111…14H.^ a b Tetzlaff, N.;  et\u00a0al. (2011). “A catalogue of young runaway Hipparcos stars within 3 kpc from the Sun”. Monthly Notices of the Royal Astronomical Society. 410 (1): 190\u2013200. arXiv:1007.4883. Bibcode:2011MNRAS.410..190T. doi:10.1111\/j.1365-2966.2010.17434.x. S2CID\u00a0118629873. Vizier catalog entry^ a b Hohle, M. M.;  et\u00a0al. (2010). “Masses and luminosities of O- and B-type stars and red supergiants”. Astronomische Nachrichten. 331 (4): 349. arXiv:1003.2335. Bibcode:2010AN….331..349H. doi:10.1002\/asna.200911355. S2CID\u00a0111387483. Vizier catalog entry^ Gontcharov, G. A. (2012). “Dependence of kinematics on the age of stars in the solar neighborhood”. Astronomy Letters. 38 (12): 771\u2013782. arXiv:1606.08814. Bibcode:2012AstL…38..771G. doi:10.1134\/S1063773712120031. S2CID\u00a0118345778. Vizier catalog entry^ Abt, Helmut A.;  et\u00a0al. (2002). “Rotational Velocities of B Stars”. The Astrophysical Journal. 573 (1): 359\u2013365. Bibcode:2002ApJ…573..359A. doi:10.1086\/340590.^ “HD 37756”. SIMBAD. Centre de donn\u00e9es astronomiques de Strasbourg. Retrieved 2020-11-20.^ Sinnott, Roger W.; Perryman, Michael A. C. (1997). Millennium Star Atlas. Vol.\u00a01. Sky Publishing Corporation and the European Space Agency. p.\u00a0253. ISBN\u00a00-933346-84-0.^ Voss, R.;  et\u00a0al. (September 2010). “Probing the evolving massive star population in Orion with kinematic and radioactive tracers”. Astronomy and Astrophysics. 520: 10. arXiv:1005.3827. Bibcode:2010A&A…520A..51V. doi:10.1051\/0004-6361\/201014408. S2CID\u00a038599952. A51.^ a b Rao, N. Kameswara;  et\u00a0al. (1990). “The eccentric double-lined binary BD \u2014 1\u00b0 1004”. Journal of Astrophysics and Astronomy. 11 (4): 445. Bibcode:1990JApA…11..445K. doi:10.1007\/BF02709760. S2CID\u00a073616576.^ Hill, Graham (August 1967). “On Beta Cephei Stars: a Search for Beta Cephei Stars”. Astrophysical Journal Supplement. 14: 263. Bibcode:1967ApJS…14..263H. doi:10.1086\/190156.^ Hoffleit, Dorrit (1996). “A Catalogue of Correlations Between Eclipsing Binaries and Other Categories of Double Stars”. The Journal of the American Association of Variable Star Observers. 24 (2): 105\u2013116. Bibcode:1996JAVSO..24..105H.Wikimedia Error       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Our servers are currently under maintenance or experiencing a technical problem.Please try again in a few\u00a0minutes.See the error message at the bottom of this page for more\u00a0information.      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