[{"@context":"http:\/\/schema.org\/","@type":"BlogPosting","@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/16-virginis-wikipedia\/#BlogPosting","mainEntityOfPage":"https:\/\/wiki.edu.vn\/en\/wiki24\/16-virginis-wikipedia\/","headline":"16 Virginis – Wikipedia","name":"16 Virginis – Wikipedia","description":"before-content-x4 From Wikipedia, the free encyclopedia after-content-x4 Star in the constellation Virgo 16 Virginis is a single[9]star in the zodiac","datePublished":"2016-09-10","dateModified":"2016-09-10","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:\/\/wikimedia.org\/api\/rest_v1\/media\/math\/render\/svg\/13570cfb689a4f2b0c8c5f4c91e159efa67f7c95","url":"https:\/\/wikimedia.org\/api\/rest_v1\/media\/math\/render\/svg\/13570cfb689a4f2b0c8c5f4c91e159efa67f7c95","height":"","width":""},"url":"https:\/\/wiki.edu.vn\/en\/wiki24\/16-virginis-wikipedia\/","about":["Wiki"],"wordCount":4007,"articleBody":"     (adsbygoogle = window.adsbygoogle || []).push({});before-content-x4From Wikipedia, the free encyclopedia       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4Star in the constellation Virgo16 Virginis is a single[9]star in the zodiac constellation of Virgo, located about 308[1]\u00a0light years from the Sun. It has the Bayer designation c Virginis; 16 Virginis is the Flamsteed designation. This object is visible to the naked eye as a faint, orange-hued star with an apparent visual magnitude of 4.96.[2] This is an IAU radial velocity standard star;[10] it is moving further from the Earth with a heliocentric radial velocity of +37\u00a0km\/s.[4] The star has a relatively high proper motion, traversing the celestial sphere at an angular rate of 0.301\u2033 per year.[11]       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4In Chinese astronomy, 16 Virginis is called \u8b01\u8005, Pinyin: Y\u00e8zh\u011b, meaning Usher to the Court, because this star is marking itself and stand alone in Usher to the Court asterism, Supreme Palace enclosure mansion (see\u00a0: Chinese constellation).[12]This is an evolved K-type giant star with a stellar classification of K0.5 IIIb Fe\u22120.5,[3] where the suffix notation denotes a mild underabundance of iron in the spectrum. It is a red clump giant, which indicates is on the horizontal branch generating energy via helium fusion at its core.[13] The interferometry-measured angular diameter of this star, after correcting for limb darkening, is 1.74\u00b10.02\u00a0mas,[14] which, at its estimated distance, equates to a physical radius of about 18 times the radius of the Sun.[6] It is about three[2]\u00a0billion years old with 1.62[2] times the mass of the Sun and is radiating 132[2] times the Sun’s luminosity from its enlarged photosphere at an effective temperature of 4,423\u00a0K.[2]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.^ a b c d e f g h i j k Luck, R. Earle (2015), “Abundances in the Local Region. I. G and K Giants”, Astronomical Journal, 150 (3), 88, arXiv:1507.01466, Bibcode:2015AJ….150…88L, doi:10.1088\/0004-6256\/150\/3\/88, S2CID\u00a0118505114.^ a b Keenan, Philip C.; McNeil, Raymond C. (1989), “The Perkins catalog of revised MK types for the cooler stars”, Astrophysical Journal Supplement Series, 71: 245, Bibcode:1989ApJS…71..245K, doi:10.1086\/191373.^ a b Brown, A. G. A.;  et\u00a0al. (Gaia collaboration) (August 2018). “Gaia Data Release 2: Summary of the contents and survey properties”. Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A…616A…1G. doi:10.1051\/0004-6361\/201833051. Gaia DR2 record for this source at VizieR.^ Cardini, D. (January 2005), “Mg II chromospheric radiative loss rates in cool active and quiet stars”, Astronomy and Astrophysics, 430: 303\u2013311, arXiv:astro-ph\/0409683, Bibcode:2005A&A…430..303C, doi:10.1051\/0004-6361:20041440, S2CID\u00a012136256.^ a b Lang, Kenneth R. (2006), Astrophysical formulae, Astronomy and astrophysics library, vol.\u00a01 (3rd\u00a0ed.), Birkh\u00e4user, ISBN\u00a03-540-29692-1. The radius (R*) is given by:2\u22c5R\u2217=(10\u22123\u22c594.4\u22c51.74)\u00a0AU0.0046491\u00a0AU\/R\u2a00\u224835.3\u22c5R\u2a00{displaystyle {begin{aligned}2cdot R_{*}&={frac {(10^{-3}cdot 94.4cdot 1.74) {text{AU}}}{0.0046491 {text{AU}}\/R_{bigodot }}}\\&approx 35.3cdot R_{bigodot }end{aligned}}}^ a b Jofr\u00e9, P.;  et\u00a0al. (2014), “Gaia FGK benchmark stars: Metallicity”, Astronomy and Astrophysics, 564: A133, arXiv:1309.1099, Bibcode:2014A&A…564A.133J, doi:10.1051\/0004-6361\/201322440, S2CID\u00a0119241541.^ “c Vir”. SIMBAD. Centre de donn\u00e9es astronomiques de Strasbourg. Retrieved 2019-02-10.^ 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.^ Batten, A. H.; Crampton, D.; Fletcher, J. M.; Morbey, C. L. (1971), “Wavelength Standards for the Measurement of Radial Velocities”, Publications of the Dominion Astrophysical Observatory, 13: 441, Bibcode:1971PDAO…13..441B.^ L\u00e9pine, S\u00e9bastien; Shara, Michael M. (March 2005), “A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15″ (LSPM-NORTH Catalog)”, The Astronomical Journal, 129 (3): 1483\u20131522, arXiv:astro-ph\/0412070, Bibcode:2005AJ….129.1483L, doi:10.1086\/427854, S2CID\u00a02603568.^ Ridpath, Ian, “Virgo the Virgin”, Startales.^ Alves, David R. (August 2000), “K-Band Calibration of the Red Clump Luminosity”, The Astrophysical Journal, 539 (2): 732\u2013741, arXiv:astro-ph\/0003329, Bibcode:2000ApJ…539..732A, doi:10.1086\/309278, S2CID\u00a016673121.^ Richichi, A.; Percheron, I.; Khristoforova, M. (February 2005), “CHARM2: An updated Catalog of High Angular Resolution Measurements”, Astronomy and Astrophysics, 431 (2): 773\u2013777, Bibcode:2005A&A…431..773R, doi:10.1051\/0004-6361:20042039.Horizontal-branch stars       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4       (adsbygoogle = window.adsbygoogle || []).push({});after-content-x4"},{"@context":"http:\/\/schema.org\/","@type":"BreadcrumbList","itemListElement":[{"@type":"ListItem","position":1,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/#breadcrumbitem","name":"Enzyklop\u00e4die"}},{"@type":"ListItem","position":2,"item":{"@id":"https:\/\/wiki.edu.vn\/en\/wiki24\/16-virginis-wikipedia\/#breadcrumbitem","name":"16 Virginis – Wikipedia"}}]}]