Share to:

N6946-BH1

Cet article est une ébauche concernant une étoile.

Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants.

N6946-BH1 est (était) une étoile géante (d'environ 25 masses solaires) située à 22 millions d'années-lumière, dans la galaxie spirale NGC 6946.

En 2009 cette étoile a vu sa luminosité croître jusqu'à plus d'un million de luminosités solaires pendant plusieurs mois, puis elle a disparu des images de Hubble sans produire de supernova^[1]. Une faible émission de lumière infrarouge a cependant été détectée en provenance de sa position dans le ciel.

Ces faits sont interprétés comme dus à l'effondrement de l'étoile en un trou noir, et l'émission infrarouge comme celle d'un disque d'accrétion de matière résiduelle spiralant vers le trou noir. L'absence d'un stade de supernova pourrait être la norme pour les étoiles les plus massives.

Notes et références

↑ (en) « Massive Star Goes Out With a Whimper Instead of a Bang », sur Jet Propulsion Laboratory (consulté le 9 juin 2017).

v · m Étoiles de la constellation du Cygne
Bayer	α (Deneb) β (Albiréo) γ (Sadr) δ (Fawaris) ε (Aljanah) ζ η θ ι¹ (en) ι² κ λ μ ν ξ π¹ (Azelfafage) π² ρ σ τ υ φ χ ψ ω¹ ω² (en) P Q
Flamsteed	2 4 (en) 8 9 (en) 14 15 16 (c) 17 19 20 (d) (en) 22 23 (en) 25 26 (e) (en) 27 (b¹) (en) 28 (b²) 29 (b³) 30 31 (ο¹) 32 (ο²) 33 35 (en) 36 39 40 41 42 43 44 47 48 49 51 52 55 56 (en) 57 59 (f¹) 60 61 63 (f²) 68 (A) (en) 69 70 71 (g) (en) 72 74 (en) 75 (en) 76 77 79
Étoiles variables	R (en) T U V W (en) X DT RW (en) SS TT (en) BC BI (en) CH CP KY V367 V380 V389 V404 V460 V476 V819 V973 V1057 (en) V1191 (en) V1276 V1331 V1334 V1339 V1351 V1500 V1584 V1619 V1668 V1743 V1762 V1765 V1768 V1773 V1794 V1817 V1942 V1974 V1981 V2015 V2090 V2093 V2100 V2119 V2130 V2136 V2140 V2173 V2513 (en) V2659
HR	7311 7322 7427 7444 7451 7466 7468 7477 7481 7484 (V1143) (en) 7492 7495 7499 7502 7512 7514 7529 7530 7535 7543 7547 7555 7589 7591 7606 7628 7633 7638 7640 7646 7683 7684 7697 7726 7734 7743 7752 7756 7757 7759 7767 7781 7784 7795 7798 7800 7802 7818 7827 7843 7904 7912 (en) 7917 7926 7958 7969 7978 8003 8005 8023 8025 8026 8035 8036 8040 8051 8064 8071 8078 8106 8107 8161 8166 8169 8170 8185 8193 (en) 8208 8216 8220 8242 8246 8248 8259 8275 8306 8403
HD	185269 (en) 187123 (en) 188753 190429 191612 191806 (en) 192639 193469 195592 195987 197037 201345 202710
Kepler	5 6 11 15 16 17 18 22 23 (en) 27 (en) 28 (en) 29 (en) 31 (en) 32 (en) 33 (en) 34 (en) 35 36 39 40 41 (en) 42 43 (en) 44 (en) 45 (en) 47 51 (en) 56 61 (en) 64 66 (en) 67 (en) 68 69 (en) 70 78 80 84 (en) 86 (en) 89 (en) 107 114 182 (en) 186 223 (en) 283 300 371 (en) 419 (en) 432 437 443 448 451 (en) 452 737 (en) 1229 (en) 1520 1625 1647 1649
Étoiles Wolf-Rayet	WR 134 (en) WR 135 (en) WR 136 (en) WR 137 (en) WR 140 (en) WR 142 (en) WR 147 (en) WR 148 (en)
Autres	BD+40 4210 (en) BD+43 3654 (en) Cygnus OB2 #8A (en) Cygnus OB2 #12 Cygnus X-1 Cygnus X-3 Gliese 777 Gliese 806 (en) GJ 1245 HAT-P-7 HAT-P-11 HAT-P-17 (en) KELT-9 (en) KIC 6220497 KIC 8462852 KIC 9832227 KIC 11026764 (en) KOI-5 KOI-74 (en) KOI-81 (en) KOI-256 KPD 1930+2752 (en) KSw 71 MWC 349 (en) N6946-BH1 NML Cygni PSR J2032+4127 W75N(B)-VLA2 Schulte 9
Liste d'étoiles du Cygne

Read other articles:

Första ordningens logik

Den här artikeln behöver källhänvisningar för att kunna verifieras. (2020-04) Åtgärda genom att lägga till pålitliga källor (gärna som fotnoter). Uppgifter utan källhänvisning kan ifrågasättas och tas bort utan att det behöver diskuteras på diskussionssidan. Logik, Formellt system Bivalent logik Boolesk algebra Deontisk logik Filosofisk logik Flervärd logik Matematisk logik Metalogik Modallogik Satslogik Temporal logik Logiska system Första ordningens logik Andra ordningens...

Satyalancana Wira Dharma

Satyalancana Wira DharmaTipeSatyalancanaNegara IndonesiaDipersembahkan olehPresiden IndonesiaSyaratMiliterStatusMasih dianugerahkanDidirikan1964 Diploma Satya Lancana Wira Dharma berdasarkan PP No. 17 Tahun 1964 Satyalancana Wira Dharma berdasarkan PP No. 17 Tahun 1964 Satyalancana Wira Dharma adalah tanda penghargaan yang diberikan kepada prajurit Tentara Nasional Indonesia yang bertugas dan mendarmabaktikan diri untuk pengamanan perbatasan Negara Kesatuan Republik Indonesia, selama min...

Adam Rudolph von Schönberg

Bronzebüste von Schönberg im Hof von Schloss Reichstädt Adam Rudolph von Schönberg (* 31. Mai 1712 in Maxen; † 8. Februar 1795 in Dresden) war ein Geheimer Rat und der letzte Generalpostmeister am kurfürstlich-sächsischen Hof zu Dresden. Leben Adam Rudolph von Schönberg war der Sohn des Caspar Abraham von Schönberg (1680–1763) und dessen Ehefrau Christiane Charlotte von Nostitz (1682–1765). Er war Gutsherr auf Purschenstein, Sayda sowie Maxen mit Leuteritz und gemeinsam mit sein...

Обговорення користувача:Asaf (WMF)

Ласкаво просимо! Основні засади Вікіпедії Ласкаво просимо до україномовної Вікіпедії, Asaf (WMF)! Для чого ми розвиваємо Вікіпедію Вітаємо Вас як нового учасника україномовного розділу Вікіпедії. Сподіваємось на плідну співпрацю з Вами над спільним відкритим проєкто

تاكاميتشي سيكي

يفتقر محتوى هذه المقالة إلى الاستشهاد بمصادر. فضلاً، ساهم في تطوير هذه المقالة من خلال إضافة مصادر موثوق بها. أي معلومات غير موثقة يمكن التشكيك بها وإزالتها. (مايو 2023) هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة إليها في مقالات متعلقة بها. (�...

Porsche–Piëch family

Austrian–German family PorscheBusiness familyFerdinand Porsche the founder and namesake of Porsche and patriarch of the Porsche familyCurrent regionSwitzerland, Austria, GermanyPlace of originReichenberg, Kingdom of BohemiaFounded18th centuryWebsitewww.porsche-se.com/en/ The Porsche family (also known as Porsche–Piëch family[1]) is a prominent Austrian–German family of industrialists descending from the Austrian–German automotive pioneer Ferdinand Porsche. Its members control...

Resolusi 1639 Dewan Keamanan Perserikatan Bangsa-Bangsa

Resolusi 1639Dewan Keamanan PBBLambang EUFORTanggal21 November 2005Sidang no.5.307KodeS/RES/1639 (Dokumen)TopikSituasi di Bosnia and HerzegovinaRingkasan hasil15 mendukungTidak ada menentangTidak ada abstainHasilDiadopsiKomposisi Dewan KeamananAnggota tetap Tiongkok Prancis Rusia Britania Raya Amerika SerikatAnggota tidak tetap Aljazair Argentina Benin Brasil Denmark Filipina Jepang Rumania Tanzania Yunani Re...

Swype

Virtual keyboard application SwypeDeveloper(s)Nuance (Microsoft)Initial releaseDecember 2, 2009 (2009-12-02)Final releaseAndroid1.6.20 (November 19, 2014; 9 years ago (2014-11-19)[1]) [±] Operating systemAndroid 2.2 and later, Bada, MeeGo, Symbian, Windows 7, Windows Mobile, iOS 8 and laterTypeVirtual keyboard, speech recognitionLicenseProprietary Swype was a virtual keyboard for touchscreen smartphones and tablets originally developed by ...

Miss World Bulgaria

This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (November 2016) (Learn how and when to remove this template message) Miss World BulgariaFormation1988FounderStrahil GanovskiTypeNational beauty pageantHeadquartersSofiaLocationBulgariaMembership Miss WorldOfficial language BulgarianPresidentVeneta KrastevaKey peopleJulia MorleyWebsitemissworldbulgaria.org/en/ Mis...

Charites

Greek goddesses of grace and beauty Not to be confused with Charitable organization. Charis and Graces redirect here. For other uses, see Charis (disambiguation) and Grace (disambiguation). The Three Graces in a fresco at Pompeii, 1-50 AD In Greek mythology, the Charites /ˈkærɪtiːz/ (Χάριτες [kʰárites]), singular Charis, or Graces, were three or more goddesses of charm, beauty, nature, human creativity, goodwill, and fertility.[1] Hesiod names three – Aglaea (Sh...

Sonay Kartal

British tennis player Sonay KartalKartal at the 2023 French OpenCountry (sports) United KingdomResidenceBrighton, EnglandBorn (2001-10-28) 28 October 2001 (age 22)London, EnglandTurned pro2019PlaysRight (two-handed backhand)CoachJulie Hobbs, Ben & Martin ReevesPrize money$266,117SinglesCareer record88–35 (71.5%)Career titles8 ITFHighest rankingNo. 195 (30 January 2023)Current rankingNo. 234 (20 November 2023)Grand Slam singles resultsAustralian...

1995–96 FIBA European League

Sports season1995–96 FIBA European LeagueLeagueFIBA European LeagueSportBasketballRegular SeasonTop scorer Joe Arlauckas (Real Madrid)Final FourChampions Panathinaikos Runners-up FC Barcelona Banca CatalanaFinal Four MVP Dominique Wilkins (Panathinaikos)FIBA European League seasons← 1994–951996–97 → The 1995–96 FIBA European League, also shortened to 1995–96 FIBA EuroLeague, was the 39th installment of the European top-tier level professional club competitio...

Natalie Ong

This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) The topic of this article may not meet Wikipedia's notability guideline for biographies. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be...

Claudia Gravy

Claudia Gravy (born 12 May 1945) is a Spanish nationalized actress born as Marie-Claude Perin in Boma, Democratic Republic of the Congo when it was the Belgian Congo. Claudia GravyGravy in 2018Born (1945-05-12) 12 May 1945 (age 78)Boma, Belgian CongoOther namesClaudia GraviOccupationActor Career Claudia has lived in Madrid since 1965, when she made her debut in the cinema with Fernando Fernán Gómez's adaption of Miguel Mihura's work, Ninette y un señor de Murcia. During the follo...

Ellen J. Kennedy

American academic The topic of this article may not meet Wikipedia's notability guideline for academics. Please help to demonstrate the notability of the topic by citing reliable secondary sources that are independent of the topic and provide significant coverage of it beyond a mere trivial mention. If notability cannot be shown, the article is likely to be merged, redirected, or deleted.Find sources: Ellen J. Kennedy – news · newspapers · books · scholar...

Prithviraj Sukumaran filmography

This article includes a list of general references, but it lacks sufficient corresponding inline citations. Please help to improve this article by introducing more precise citations. (September 2022) (Learn how and when to remove this template message) Prithviraj in 2019. Prithviraj Sukumaran is an Indian actor, director, playback singer, producer, distributor and action choreographer who predominantly works in Malayalam language films. He also appears in Tamil, Hindi and Telugu films. He has...

John Howard Clark

John Howard Clark (15 January 1830 – 20 May 1878) was editor of The South Australian Register from 1870 to 1877 and was responsible for its Echoes from the Bush column and closely associated with its Geoffry Crabthorn persona. Early years John was born in Birmingham, son of Francis Clark (1799 – 1853), a silversmith[1] also born in Birmingham. Grandfather Thomas Clark ran a school for boys, then a factory.[2] His mother Caroline (1800 – 16 September 1877) was...

List of Arab salads

List of Arab salads Varieties of Arabic salad: Arab salad, Fattoush, Palestinian salad, Tabbouleh and Raheb. In Arab cuisine salads may precede a meal, served in huge variety on small plates as part of a mezze, or accompany it. Tabbouleh, a salad of finely chopped parsley, with tomatoes, mint, onion, and soaked bulgur, is one of the most popular Arab salads. Mixed vegetable salads, and salads of cooked eggplant or chick peas are common. Green salad, which is better known as the Salata Khadra,...

Квієтизм (філософія)

Ця стаття про Аналітичнe філософію. Про інші значення див. Квієтизм. Філософські квієтісти хочуть звільнити людство від глибокого збентеження, яке часто викликається філософським спогляданням. Квієтизм у філософії розглядає роль філософії як широко терапевтичну або лі...

Wörth Castle

Building in Neuhausen am Rheinfall, SwitzerlandSchlösschen WörthSchlössli WörthRheinfall, the Rhein river and Schloss Laufen as seen from the Wörth CastleLocation within Canton of SchaffhausenShow map of Canton of SchaffhausenWörth Castle (Switzerland)Show map of SwitzerlandFormer namesBurg im FischerhölzliGeneral informationStatusRestaurant, shop, fast food point, Rhein boat terminalArchitectural styleWater castleClassificationHistoric monumentTown or cityNeuhausen am RheinfallCountry...

Kembali kehalaman sebelumnya