www.wikidata.uk-ua.nina.az
a Cassiopeia Shedar zorya poznachena a vnizu sprava vizualnoyi literi W Dani sposterezhennyaEpoha J2000Suzir ya KassiopeyaPryame pidnesennya 00g 40h 30 4405s 1 Shilennya 56 32 14 392 1 Vidima zoryana velichina V 2 240 2 HarakteristikiSpektralnij klas K0IIIa 1 Pokaznik koloru B V 1 16 3 Pokaznik koloru U B 1 14 3 Tip zminnosti pidozryuvana 4 AstrometriyaPromeneva shvidkist Rv 4 31 km cVlasnij ruh m Pr sh 50 36 1 mas r Shil 32 17 1 mas rParalaks p 14 29 0 15 mas 5 Vidstan 228 2 sv r 70 0 7 pk Absolyutna zoryanavelichina MV 1 985 2 Fizichni harakteristikiMasa 4 5 6 M Radius 42 1 1 7 7 R Svitnist 676 note 1 L Efektivna temperatura 4 530 6 KVik 0 1 0 2 6 mlrd rokivInshi poznachennyaSchedar a Cas 18 Cas HR 168 BD 55 139 HD 3712 SAO 21609 FK5 21 HIP 3179 GC 792 ADS 561 CCDM J00405 5632PosilannyaSIMBADdani dlya SCHEDARKoordinati 00g 40m 30 5s 56 32 14 5 Shedar abo Alfa Kassiopeyi lat a Cassiopeiae skorocheno a Cas zorya drugoyi velichini v suzir yi Kassiopeyi 8 Hocha vona j poznachena Jogannom Bajyerom yak a vizualna yaskravist a Kassiopeyi duzhe blizka do b Kassiopeyi Kaf 9 i vona mozhe viglyadati trohi yaskravishoyu abo tmyanishoyu zalezhno vid obranogo diapazonu Odnak nedavni rozrahunki vid teleskopu NASA WISE pidtverdzhuyut sho a Cas ye najyaskravishoyu v suzir yi Kassiopeyi z vidimoyu velichinoyu 2 240 Yiyi absolyutna zoryana velichina v 18 raziv perevishuye b Cas odnak vona roztashovana bilsh nizh uchetvero dali vid Soncya 228 svitlovih rokiv proti 54 Zmist 1 Nazvi 2 Vidimist 2 1 Fotometrichna zminnist 2 2 Kutovij analiz 3 Harakteristiki 4 Zobrazhennya 5 Div takozh 6 Primitki 7 Dzherela 8 PosilannyaNazvi Redaguvatia Cassiopeiae latinizovane do Alpha Cassiopeiae ye poznachennyam Bajyera dlya zori Abd al Rahman al Sufi i Ulugbek nazivali zoryu Al Dhat al Kursij arabska تات الكرسي Al Dhat al Kursiyy sho oznachaye dama v krisli yaku Dzhovanni Battista Richcholi zminiv na Dat Elkarti 10 Nazva Shedar vpershe traplyayetsya v Alfonsovih tablicyah trinadcyatogo stolittya Vona pohodit vid arab در sadr sho oznachaye grudi i poznachaye roztashuvannya zori v serci mifologichnoyi carici Kassiopeyi 10 Yan Gevelij u svoyih tvorah vzhivav nazvu Schedir ukr Shedir vtim isnuvali j inshi transliteraciyi z arabskoyi taki yak Shedar Shadar Sheder Seder Shedis ta Shedir Shedar Shadar Sheder Seder Shedis i Shedir 2016 roku Mizhnarodnij astronomichnij soyuz organizuvav Robochu grupu iz nazv zir angl Working Group on Star Names WGSN 11 dlya katalogizaciyi ta standartizaciyi vlasnih nazv zir 21 serpnya 2016 roku WGSN zatverdila dlya zori nazvu Schedar Shedar i vona teper vklyuchena do Pereliku nazv yaki zatverdzheno MAS 9 Kitajska 王良 Wang Liang stosuyetsya kitajskogo asterizmu Van Lyan na chest vidomogo kolisnika v period Vesni i Oseni Asterizm skladayetsya z Alfi Beti Kappi Eti i Lyambdi Kassiopeyi 12 A sama Alfa Kassiopeyi vidoma yak 王良四 Wang Liang si Chetverta zorya Van Lyan 13 Vidimist Redaguvati nbsp Kassiopeya v konteksti Chumackogo Shlyahu Pri shilenni 56 32 N Shedar vidimij j vsij pivnichnij pivkuli Zoryu mozhut bachiti j bilshist sposterigachiv po vsomu svitu yaki perebuvayut na pivnich vid 33 pivdennoyi shiroti zokrema yiyi vidno v takih mistah pivdennoyi pivkuli yak Pert chi Santyago hocha j nevisoko nad gorizontom Shedar roztashovanij na okolici galaktiki Chumackij Shlyah tomu ye j inshi pomitni nebesni ob yekti yaki mozhna pobachiti poblizu ciyeyi zori sered nih tumannist Pakman NGC 436 i NGC 457 Alfa Kassiopeyi dosyagaye svogo zenitu nad takimi mistami yak Edinburg Kopengagen i Moskva U Yevropi Rosiyi ta na pivnichnoamerikanskomu kontinenti azh do Los Andzhelesa a takozh v inshih miscyah sho mayut pivnichnu shirotu bilshe 33 zorya nikoli ne zahodit za gorizont Oskilki Shedar maye drugu zoryanu velichinu yak i b Cas yiyi dobre vidno neozbroyenim okom odnak Svitlove zabrudnennya harakterne dlya bilshosti mist mozhe zavazhati comu Najkrashij chas dlya sposterezhennya v pivnichnij pivkuli pizni osinni misyaci koli Kassiopeya prohodit cherez meridian opivnochi ale z oglyadu na te sho v bagatoh miscyah pivnichnoyi pivkuli vona ne zahodit za gorizont yiyi mozhna bachiti protyagom usogo roku Fotometrichna zminnist Redaguvati Zalezhno vid zastosovanoyi fotometrichnoyi sistemi Shedar trohi yaskravishij abo tmyanishij nizh Kaf b v suzir yi Sistema UBV protyagom drugoyi polovini HH stolittya vkazuvala na vidimu zoryanu velichinu yaka kolivalasya vid 2 20 do 2 23 takim chinom vona vvazhalasya trohi yaskravishoyu nizh Kaf z yiyi zminnoyu velichinoyu vid 2 25 do 2 31 1 Prote rozrahunki u vizualnij smuzi vidimogo svitla dovzhinoyu vid 500 do 600 nanometriv zrobleni Floor Van Leven Floor Van Leeuwen 2007 roku dali nove vimiryuvannya dlya oboh zir 2 4107 dlya Shedar i 2 3579 dlya Kaf sho svidchat pro te sho najyaskravishoyu zoreyu suzir ya ye Kaf 5 Plutanina vinikaye cherez te sho rizni instrumenti roblyat vimiryuvannya v desho riznih diapazonah hvil Kutovij analiz Redaguvati Iz rozvitkom optichnoyi interferometriyi v 1990 h rokah kutovij diametr Shedara bulo vimiryano 1998 roci na riznih dovzhinah hvil u diapazoni 500 850 nm Rezultatom stav zatemnene po perimetru kutove vimiryuvannya u 5 62 0 06 kutovih milisekund mas 7 diametr sho dorivnyuye priblizno 0 393 a o abo 42 3 radiusa Soncya pripuskayuchi paralaks u 14 29 mas Porivnyuyuchi z orbitoyu planeti Merkurij sho obertayetsya navkolo Soncya na vidstani priblizno 0 4 a o fotosfera Shedara prostyagayetsya priblizno do polovini orbiti Merkuriya Harakteristiki Redaguvati nbsp Zoryane pole Kassiopeyi pokazuye a Cas oranzhevij gigant vidnosno do inshih zir u suzir yi Shedar chervonij gigant spektralnij klas yakogo v astronomichnij bazi danih SIMBAD vkazanij yak K0IIIa tobto Shedar znachno holodnishij za Sonce 1 Odnak oskilki vona nablizhayetsya do zavershennya svoyeyi evolyuciyi fotosfera zori istotno rozshirilasya dayuchi bolometrichnu svitnist sho priblizno v 676 raziv perevishuye svitnist Soncya note 1 Zgidno z pereglyanutimi danimi Gipparkos van Leeuwen 2007 rozrahunkova vidstan do zori stanovit blizko 70 parsek abo 228 svitlovih rokiv 5 Yak i vsi gigantski zori Shedar obertayetsya povilno zi shvidkistyu priblizno 21 km s na ekvatori z takoyu shvidkistyu zori potribno priblizno 102 dni shob zrobiti odin povnij obert na svoyij osi 14 Shedar inodi klasifikuyut yak zminnu zoryu ale z 19 stolittya zminnist ne bulo viyavleno 6 Krim togo u Vashingtonskomu katalozi podvijnih zir zaznacheno tri optichnih suputnika Shedara ale vsi voni mozhut buti lishe roztashovanimi na odnij liniyi zoru z Zemli Vik Shedara ocinyuyetsya vid 100 do 200 miljoniv rokiv bilshu chastinu yakogo vin buv blakitno biloyu zoreyu golovnoyi poslidovnosti spektralnogo klasu V 6 Zobrazhennya Redaguvati nbsp Ilyustraciya z globusa Merkatora de Shedar zobrazhenij bilya sercya nebesnoyi carici 15 U 1551 r Gerard Merkator flamandskij kartograf vigotoviv nebesnij globus zobrazivshi 48 tradicijnih suzir yiv Ptolemeya ta dva inshih Volossya Veroniki i Antinoj 15 Na comu globusi vin predstaviv Kassiopeyu yak caricyu Efiopiyi pokaranu za yiyi vihvalyannya j prikutu do perevernutogo stilcya Shedar poznacheno bilya yiyi livoyi grudi sho vidobrazhaye arabske etimologichne pohodzhennya nazvi Div takozh RedaguvatiZori spektralnogo klasu K Kutovij diametr Betelgejze dlya pogliblenogo obgovorennya chervonih gigantiv Primitki Redaguvati a b Formula dlya rozrahunku bolometrichnoyi svitnosti Shedara L S L R S R 2 T S T 4 displaystyle begin smallmatrix frac L rm S L odot left frac R rm S R odot right 2 left frac T rm S T odot right 4 end smallmatrix nbsp de S Shedar L svitnist R radius i T temperatura Tomu L S L 42 3 1 2 4 530 5 778 4 676 L displaystyle begin smallmatrix frac L rm S L odot left frac 42 3 1 right 2 left frac 4 530 5 778 right 4 676L odot end smallmatrix nbsp Zauvazhennya Rozrahunok svitnosti silno zalezhit vid kutovogo diametra ta vidstani yaki mayut deyaku neviznachenist Dzherela Redaguvati a b v g d e zh SIMBAD query result SCHEDAR Star Centre de Donnees astronomiques de Strasbourg Arhiv originalu za 10 grudnya 2015 Procitovano 22 lyutogo 2010 a b Kharchenko N V Roeser S September 2009 All sky Compiled Catalogue of 2 5 million stars VizieR Centre de Donnees astronomiques de Strasbourg Bibcode 2009yCat 1280 0K Arhiv originalu za 9 grudnya 2019 Procitovano 6 sichnya 2011 The absolute magnitude is computed using the Kharcheko apparent magnitude of 2 240 and the Van Leeuwen parallax of 14 29 a b Mermilliod J C 1986 Compilation of Eggen s UBV data transformed to UBV unpublished Catalogue of Eggen s UBV data Bibcode 1986EgUBV 0M Samus N N Durlevich O V 2009 VizieR Online Data Catalog General Catalogue of Variable Stars Samus 2007 2013 VizieR On line Data Catalog B gcvs Originally published in 2009yCat 102025S 1 Bibcode 2009yCat 102025S a b v van Leeuwen F November 2007 Hipparcos the New Reduction Astronomy and Astrophysics Centre de Donnees astronomiques de Strasbourg 474 2 653 664 Bibcode 2007A amp A 474 653V arXiv 0708 1752 doi 10 1051 0004 6361 20078357 a b v g d Professor James B Jim Kaler SHEDAR Alpha Cassiopeiae University of Illinois Arhiv originalu za 27 bereznya 2010 Procitovano 22 lyutogo 2010 a b Hajian Arsen R Armstrong J T Hummel C A Benson J A March 1998 Direct Confirmation of Stellar Limb Darkening with the Navy Prototype Optical Interferometer The Astrophysical Journal 496 1 484 Bibcode 1998ApJ 496 484H doi 10 1086 305388 Kassiopeya Astronomichnij enciklopedichnij slovnik za zag red I A Klimishina ta A O Korsun Lviv Golov astronom observatoriya NAN Ukrayini Lviv nac un t im Ivana Franka 2003 S 208 ISBN 966 613 263 X a b Naming Stars IAU org Arhiv originalu za 11 kvitnya 2020 Procitovano 18 chervnya 2018 a b Richard Hinckley Allen 1963 Star Names Their Lore and Meaning Dover Publications s 142 Procitovano 31 grudnya 2010 IAU Working Group on Star Names WGSN International Astronomical Union Arhiv originalu za 10 chervnya 2016 Procitovano 22 travnya 2016 kit 中國星座神話 written by 陳久金 Published by 台灣書房出版有限公司 2005 ISBN 978 986 7332 25 7 kit 香港太空館 研究資源 亮星中英對照表 Arhivovano 2010 08 18 u Wayback Machine Hong Kong Space Museum Accessed on line November 23 2010 Bright Star Catalogue Hoffleit 1991 VizieR vid 5th Revised Centre de Donnees astronomiques de Strasbourg Arhiv originalu za 26 kvitnya 2020 Procitovano 31 grudnya 2010 a b Gerard Mercator 1512 1594 Cassiopeia The Queen The Mercator Globes at Harvard Map Collection Arhiv originalu za 17 serpnya 2012 Procitovano 2 sichnya 2011 Pomilka cituvannya Teg lt ref gt z nazvoyu IAU LSN viznachenij u lt references gt v grupi nichogo ne mistit Posilannya RedaguvatiHarvard Map Collection The Mercator Globes The Internet Encyclopedia of Science Shedar Alpha Cassiopeiae Arhivovano 4 serpnya 2019 u Wayback Machine Otrimano z https uk wikipedia org w index php title Shedar amp oldid 40374982