Deneb

Comparación do tamaño de Deneb e o Sol.

Deneb (α Cygni, Alpha Cygni) é unha estrela superxigante branca variable, a estrela máis brillante da constelación do Cisne e a décimo novena estrela máis brillante do ceo (magnitude aparente 1.25). Con Vega e Altair, Deneb forma o triángulo de verán, unha formación de estrelas moi brillante, ben visibles no verán no ceo nocturno. A nebulosa da América do Norte sitúase nas proximidades.

Propiedades físicas

Deneb é unha superxigante branca, de tipo espectral A2 Ia, a súa temperatura na superficie é de 8 400 K, ten 20 masas solares[1] e preto de 200 radios solares, unha das meirandes estrelas coñecidas.

A distancia de Deneb ao Sol segundo a análise dos datos recollidos na década de 1990 polo satélite europeo Hipparcos 1 340 e 1 840 al (410 e 565 pc}} realizado por dous traballos publicados en 2008[2]. A súa magnitude absoluta estímase en entre -7,2 e -8,75, o que a converte nunha das estrelas máis brillantes coñecidas, case 60 000 veces máis que o Sol[2] para unha distancia de 1 550 al. O vento solar de Deneb fai que cada ano perda unha masa de 0.8 millonésima de masa solar. Deneb é o prototipo de estrelas variables de tipo α Cygni.

Notas

  1. ↑ James B. (Jim) Kaler Deneb
  2. ↑ 2,0 2,1 J. Maíz Apellániz, E. J. Alfaro et A. Sota, « Accurate distances to nearby massive stars with the new reduction of the Hipparcos raw data arXiv:0804.2553v1.

Read other articles:

Berliner Zeitung

Berliner ZeitungTipeHarian (kecuali Minggu)PemilikM. DuMont SchaubergPenerbitBerliner VerlagPemimpin redaksiBrigitte FehrleDidirikan21 Mei 1945; 78 tahun lalu (1945-05-21)BahasaJermanPusatBerlin, JermanSirkulasi surat kabar148,000 (2010)ISSN0947-174XSitus webwww.berliner-zeitung.de Markas besar Berliner Zeitung Berliner Zeitung (Jerman: [bɛʁˈliːnɐ ˈtsaɪtʊŋ], Surat Kabar Berlin) adalah sebuah surat kabar harian berbahasa Jerman di Berlin, Jerman. Surat kabar tersebut didi...

 

Удар русских богов

«Удар русских богов» Автор В. А. Иванов и В. В. Селиванов(под псевдонимом Владимир Алексеевич Истархов) Язык оригинала русский Дата первой публикации 1999 Издательство Институт экономики и связи с общественностью Цитаты в Викицитатнике «Удар русских богов» —...

 

Shark Valley

Shark ValleyShark Valley trail and observation towerLocationEverglades National Park (ENP)Nearest cityMiamiCoordinates25°42′28″N 80°45′47″W / 25.70778°N 80.76306°W / 25.70778; -80.76306Created1947 (1947) (ENP)Operated byNational Park ServiceStatusOpen all year American Alligator at Shark Valley in Everglades National Park Two American Alligators next to the bike path at Shark Valley Shark Valley is a geological depression at the head of the S...

Синелобый амазон

Синелобый амазон Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:ВторичноротыеТип:ХордовыеПодтип:ПозвоночныеИнфратип:ЧелюстноротыеНадкласс:ЧетвероногиеКлада:АмниотыКлада:ЗавропсидыКласс:Пт�...

 

Flughafen Pulkowo

Flughafen Pulkowo Аэропо́рт Пу́лково Flughafen Pulkowo (Oblast Leningrad) Kenndaten ICAO-Code ULLI IATA-Code LED Koordinaten 59° 48′ 1″ N, 30° 15′ 45″ O59.80029166666730.26250277777824Koordinaten: 59° 48′ 1″ N, 30° 15′ 45″ O Höhe über MSL 24 m  (79 ft) Verkehrsanbindung Entfernung vom Stadtzentrum 14 km südlich von Sankt Petersburg Straße Nahverkehr Busse, Taxis Basis...

 

Members of the New South Wales Legislative Assembly, 1953–1956

× Members of the New South Wales Legislative Assembly who served in the 37th parliament held their seats from 1953 to 1956. They were elected at the 1953 state election,[1] and at by-elections.[2][3][4] The Speaker was Bill Lamb.[5] Name Party Electorate Term in office Tom Armstrong [c]   Independent Labor Kahibah 1953–1957 Joshua Arthur [c]   Labor Kahibah 1935–1953 Robert Askin   Liberal Collaroy 1950�...

Chris Brown (album)

Chris BrownAlbum studio karya Chris BrownDirilis29 November 2005Direkam2005GenreR&B, hip-hop soulDurasi55:04LabelJive RecordsProduserScott Storch, Jermaine Dupri, Bryan-Michael Cox, WyldCard, The Underdogs, Dre & Vidal, Shea Taylor, Tyler Matthews, Cool & Dre, Sean Garrett, Nick Pope, Hunter AtkinsKronologi Chris Brown Chris Brown(2005) Exclusive(2007)Exclusive2007 Templat:Extra album cover 2 Singel dalam album Chris Brown Run It!Dirilis: 25 Juli 2005 Yo (Excuse Me Miss)Dirili...

 

Unione Sportiva Messinese 1925-1926

Questa voce sull'argomento stagioni delle società calcistiche italiane è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. Voce principale: Unione Sportiva Messinese. U.S. MessineseStagione 1925-1926Sport calcio Squadra Messinese Allenatore Gottardi Presidente Giovanni Vento, Augusto Salvato Prima Divisione2º posto nel girone siciliano (per peggior differenza reti) e 5º posto nel girone A delle sem...

 

James Norris Memorial Trophy

Disambiguazione – Se stai cercando l'omonimo trofeo della International Hockey League, vedi James Norris Memorial Trophy (IHL). Questa voce o sezione deve essere rivista e aggiornata appena possibile. Sembra infatti che questa voce contenga informazioni superate e/o obsolete. Se puoi, contribuisci ad aggiornarla. James Norris Memorial TrophyFondazione1953-54 Assegnato aDifensore che dimostra nel corso della stagione le migliori capacità nel suo ruolo.[1] DetentoreColorado Avalanch...

1980 United States presidential election in Washington (state)

Main article: 1980 United States presidential election1980 United States presidential election in Washington (state) ← 1976 November 4, 1980 1984 →   Nominee Ronald Reagan Jimmy Carter John B. Anderson Party Republican Democratic Independent Home state California Georgia Illinois Running mate George H. W. Bush Walter Mondale Patrick Lucey Electoral vote 9 0 0 Popular vote 865,244 650,193 185,073 Percentage 49.66% 37.32% 10.62% County Results Rea...

 

Французский Индокитай

Историческое государствоИндокитайский союзUnion indochinoiseLiên bang Đông Dương Флаг Герб Индокитайский союз ← ← ← ←   → → → → 1887 — 1954 Столица Ханой Язык(и) французский, вьетнамский, лаосский, кхмерский Денежная единица индокитайский пиастр Площадь 750 000 км�...

 

母校

哥伦比亚大学的「智慧女神雕像」 母校（拉丁語：alma mater，英式英語發音：/ˈɑːlmə ˈmɑːtər/、美式英語發音：/ˈælmə ˈmeɪtər/），源自拉丁語，本意「母親的哺乳」，詞源與校歌相通，是一個使用於古羅馬各式地母神的頭銜，特別是刻瑞斯或者西芭莉（希臘神話），亦使用於中世紀基督教的聖母瑪利亞。 位於義大利的博洛尼亚大学於1988年，430位大学校长在大學著名的大�...

Adam Hall

American ice hockey player (born 1980) For other people named Adam Hall, see Adam Hall (disambiguation). Ice hockey player Adam Hall Hall with the Lightning in 2012.Born (1980-08-14) August 14, 1980 (age 43)Kalamazoo, Michigan, U.S.Height 6 ft 3 in (191 cm)Weight 212 lb (96 kg; 15 st 2 lb)Position Right WingShot RightPlayed for Nashville PredatorsNew York RangersMinnesota WildPittsburgh PenguinsTampa Bay LightningCarolina HurricanesPhiladelphia FlyersHC...

 

Infinity (de Rivera)

InfinityArtistJosé de RiveraYear1967TypesculptureDimensions4.1 m × 2.4 m × 4.9 m (13.5 ft × 8 ft × 16 ft)LocationNational Museum of American History, Washington, D.C.Coordinates38°53′27″N 77°01′48″W / 38.890844°N 77.03004°W / 38.890844; -77.03004OwnerSmithsonian Institution Infinity is an abstract sculpture designed by José de Rivera and created by Roy Gussow. It is located at the s...

 

Kipasan sulawesi

Kipasan sulawesi R. t. toradja di Hutan Lindung Gunung Soputan, Sulawesi Utara Status konservasi Risiko Rendah  (IUCN 3.1)[1] Klasifikasi ilmiah Kerajaan: Animalia Filum: Chordata Kelas: Aves Ordo: Passeriformes Famili: Rhipiduridae Genus: Rhipidura Spesies: R. teysmanni Nama binomial Rhipidura teysmanniBüttikofer, 1892 Kipasan sulawesi (Rhipidura teysmanni) adalah spesies burung pengicau dalam famili Rhipiduridae. Burung ini endemik Sulawesi dan Kepulauan Sula, menghuni h...

Great American Desert

Historical term for the High Plains region of North America Great American Desert, mapped by Stephen H. Long in 1820 Historic photo of the High Plains in Haskell County, Kansas, showing a treeless semi-arid grassland and a buffalo wallow or circular depression in the level surface. (Photo by W.D. Johnson, 1897) [1] The term Great American Desert was used in the 19th century to describe the part of North America east of the Rocky Mountains to approximately the 100th meridian.[2]...

 

Grand Prix F1 Italia 1995

Grand Prix Italia 1995 Lomba ke-12 dari 17 dalam Formula Satu musim 1995 Detail perlombaan[1]Tanggal 10 September 1995Nama resmi Pioneer 66o Gran Premio d'ItaliaLokasi Autodromo Nazionale MonzaMonza, Lombardy, ItalySirkuit Permanent racing facilityPanjang sirkuit 5.770 km (3.585 mi)Jarak tempuh 53 putaran, 305.810 km (190.022 mi)Cuaca SunnyPosisi polePembalap David Coulthard Williams-RenaultWaktu 1:24.462Putaran tercepatPembalap Gerhard Berger FerrariWaktu 1:26.419 putaran ke-24Podium...

 

台湾海峡通道

本文或本章節是關於未來的公共运输建設或計划。未有可靠来源的臆測內容可能會被移除，現時內容可能與竣工情況有所出入。 此条目讲述中国大陆處於施工或详细规划阶段的工程。设计阶段的資訊，或許与竣工后情況有所出入。无可靠来源供查证的猜测会被移除。 设想中的三条路线方案[1]。 臺灣海峽隧道或臺湾海峡橋隧（英語：Taiwan Strait Tunnel Project）是一项工程�...

Holly Hunter

American actress (born 1958) Holly HunterHunter at the 2015 San Diego Comic-ConBorn (1958-03-20) March 20, 1958 (age 66)Conyers, Georgia, U.S.EducationCarnegie Mellon University (BFA)OccupationActressYears active1981–presentSpouse Janusz Kamiński ​ ​(m. 1995; div. 2001)​PartnerGordon MacDonald (2001–present)Children2AwardsFull list Holly Hunter (born March 20, 1958)[1] is an American actress. Hunter won the Academy Award f...

 

São Gabriel (Rio Grande do Sul)

Questa voce sull'argomento centri abitati del Rio Grande do Sul è solo un abbozzo. Contribuisci a migliorarla secondo le convenzioni di Wikipedia. Segui i suggerimenti del progetto di riferimento. São Gabrielcomune São Gabriel – Veduta LocalizzazioneStato Brasile Stato federato Rio Grande do Sul MesoregioneSudoeste Rio-Grandense MicroregioneCampanha Central AmministrazioneSindacoLucas Menezes TerritorioCoordinate30°20′14″S 54°19′20″W30°20′14″S, 54°19′20�...