NGC 6914

NGC 6914
Megfigyelési adatok
CsillagképCygnus
Rektaszcenzió20h 24m 41s[1]
Deklináció+42° 29′ 03″ [1]
Látszó méret (V)0°3'[1]
Más elnevezésekLBN 280, Ced 176d, NGC 6914 reflexiós köd régió

Az (NGC) 6914 a Cygnus (Hattyú) csillagképben található kiemelkedő hármas reflexiós köd.

További elnevezések: LBN 280; Ced 176d.

Felfedezése

Az NGC 6914-ről először 1881-ben az északi régiót Jean Marie Edouard Stephan észlelte, majd Hubble 1922-ben és Collins 1934-ben a hármas középső és alsó részét nevezte el az alábbiak szerint:

  • északi régió: NGC 6914,
  • középső régió: NGC 6914a (magába foglalja a LkHa 229-et, vdB 132-t)
  • déli régió: NGC 6914b (magába foglalja a LkHa 227-et, vdB 131-et, PP 95-öt)

Az NGC 6914 így reflexiós köd régió néven ismert.

Tudományos adatok

Az NGC 6914 tanulmányozásakor számos fiatal csillagot találtak a régióban, a legismertebb FUor V1515Cyg. Ezért kimondható, hogy az NGC 6914 reflexiós-köd galaxisunk egy csillagkeletkezési régiója. Herbig 3 emissziós csillagot jegyzett le: LkHa 227, 228, 229. Egy kis reflexiós ködöt a PP 95-öt Parsamian és Pertosian fedezett fel, valamint Aspin és Reipurth (2000) egy nagy HH objektumot talált a PP95 mellett. Az objektum neve HH 475.

A kék reflexiós ködöket egy-egy fiatal (néhány millió éves, már nem újszülött) kék B típusú csillag világítja ki, amelyek ott születtek. A megnevezett objektumok (V1515 Cyg, LkHa 227, 228, stb) halványabb fiatal csillagok ugyanebben a csillagkeletkezési régióban. A rózsaszín területek ionizált hidrogénfelhők, amelyeket közeli nagyon forró csillagok ionizálnak. A csillagok O típusúak, forróbbak, fényesebbek, mint a reflexiós ködök megvilágító csillagai. Csillagok most a sötét felhőben születhetnek (L897).

Megfigyelési lehetőség

Az NGC 6914 a Hattyú csillagképben a Deneb és a Sadr csillagok között található az NGC 6910 nyílthalmaz közelében. Amatőr távcsővel 250mm átmérő alatt nem látható.

Az NGC 6914 reflexiós ködöt inkább augusztusban érdemes felkeresni. A Hattyú csillagkép egyébként április 25 (éjféltől) november 25 (éjfélig) kereshető fel, azonban fotografikus észlelésre augusztus 10 körül alkalmas, akkor delel a Zenittől délre cca 5°-ra.

Jegyzetek

  1. ↑ a b c NASA/IPAC Extragalactic Database. (Hozzáférés: 2016. október 8.)

További információk

Read other articles:

Poisson–Boltzmann equation

Equation used for physiological interfaces, polymer science, and semiconductors The Poisson–Boltzmann equation describes the distribution of the electric potential in solution in the direction normal to a charged surface. This distribution is important to determine how the electrostatic interactions will affect the molecules in solution. The Poisson–Boltzmann equation is derived via mean-field assumptions.[1][2] From the Poisson–Boltzmann equation many other equations ha...

 

KUVM-CD

TV station in Houston For the station on channel 10 with a similar call sign, see KUVM-LD. KUVM-CDHouston, TexasUnited StatesChannelsDigital: 20 (UHF)Virtual: 34BrandingKUVM-CD 34 Missouri City, TXProgrammingSubchannels(see below)Affiliations(see below)OwnershipOwnerHC2 Holdings(HC2 LPTV Holdings, Inc.)Sister stationsKEHO-LD, KUGB-CD, KUVM-LD, KBMN-LDHistoryFoundedAugust 6, 1980First air dateNovember 30, 1981; 42 years ago (1981-11-30)Former call signsK55CP (1981–1989)K53C...

 

America This Morning

America This MorningPembuatRoone ArledgePresenterJohn Muller (2013–sekarang) Diana Perez (2013–sekarang)Penggubah lagu temaDreamArtists StudiosNegara asalAmerika SerikatBahasa asliInggrisProduksiLokasi produksiNew York City, New YorkPengaturan kameraMulti-cameraDurasikurang lebih 23 menitRilis asliJaringanABCFormat gambar480i (SDTV),720p (HDTV)Rilis5 Juli 1982 (1982-07-05) –sekarangAcara terkaitABC World News NowGood Morning America America This Morning adalah program berita ...

Perang Cenepa

Perang CenepaPos militer Ekuador dan Peru di lembah Cenepa, Januari 1995Tanggal26 Januari – 28 Februari 1995LokasiLembah Cenepa (perbatasan Ekuador-Peru)Hasil Gencatan senjata dan penarikan pasukan*Kedua negara menyatakan kemenangan*Perjanjian damai ditandatangani pada 26 Oktober 1998Pihak terlibat Peru EkuadorTokoh dan pemimpin Alberto Fujimori Vladimir López T. Sixto Durán Ballén Paco MoncayoKekuatan 15.000 tentara180 senapan470 pesawat tempur 8.000 tentara250 senapan325 pesawat tempur...

 

Equity Life Indonesia

PT Equity Life IndonesiaJenisJasa keuangan/publikDidirikanJakarta, Indonesia (1987)Kantorpusat Jakarta, IndonesiaTokohkunciSamuel Setiawan (Presiden Direktur)Situs webwww.equity.co.id PT Equity Life Indonesia atau lebih dikenal sebagai Equity Life adalah sebuah perusahaan Asuransi Jiwa yang berdiri sejak 1987 dan berkantor pusat di Jakarta. Sebelumnya, perusahaan bernama Asuransi Jiwa Binadaya Nusa Indah sejak berdiri hingga tahun 2003, kemudian berganti menjadi Equity Financial Solution hing...

 

Muscolo semimembranoso

Questa voce o sezione sull'argomento anatomia non cita le fonti necessarie o quelle presenti sono insufficienti. Puoi migliorare questa voce aggiungendo citazioni da fonti attendibili secondo le linee guida sull'uso delle fonti. Segui i suggerimenti del progetto di riferimento. Le informazioni riportate non sono consigli medici e potrebbero non essere accurate. I contenuti hanno solo fine illustrativo e non sostituiscono il parere medico: leggi le avvertenze. Muscolo semimembranosoIl mu...

District of Louisiana

Territory of the USA between 1804-1805 District of LouisianaIncorporated and unorganized territory of the United States1804–1805A map of the District of LouisianaCapitalSt. LouisGovernmentGovernor • 1804–1805 William Henry Harrison History • Established October 1 1804• Organized July 4 1805 Preceded by Succeeded by Louisiana Purchase Territory of Louisiana The District of Louisiana, or Louisiana District, was an official and temporary United States governmen...

 

美国众议院

此條目需要补充更多来源。 (2021年7月4日)请协助補充多方面可靠来源以改善这篇条目，无法查证的内容可能會因為异议提出而被移除。致使用者：请搜索一下条目的标题（来源搜索：美国众议院 — 网页、新闻、书籍、学术、图像），以检查网络上是否存在该主题的更多可靠来源（判定指引）。 美國眾議院 United States House of Representatives第118届美国国会众议院徽章 众议院旗...

 

The Dinner (2013 film)

2013 film The DinnerFilm posterDirected byMenno MeyjesScreenplay byMenno MeyjesBased onHet dinerby Herman KochProduced byHans de WeersStarringThekla ReutenCinematographySander SnoepRelease dates 9 September 2013 (2013-09-09) (TIFF) 7 November 2013 (2013-11-07) (Netherlands) Running time88 minutesCountryNetherlandsLanguageDutch The Dinner (Dutch: Het Diner) is a 2013 Dutch drama film written and directed by Menno Meyjes. It was screened in the Contemporary...

سان فرانسيسكو كرونيكل

سان فرانسيسكو كرونيكلSan Francisco Chronicle (بالإنجليزية) الشعارمعلومات عامةالنوع يوميةتصدر كل 1 يوم بلد المنشأ  الولايات المتحدة[1][2][3] التأسيس 1865 القطع القطع الكبير الثمن USD 0,75 يومي السبت والاثنين ، USD 1,50 الأحدموقع الويب sfchronicle.com (الإنجليزية) شخصيات هامةالمالك شركة ه...

 

Federal Supreme Council

Highest constitutional authority in the UAE For other supreme councils, see Supreme Council (disambiguation). This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be challenged and removed.Find sources: Federal Supreme Council – news · newspapers · books · scholar · JSTOR (July 2012) (Learn how and when to remove this message) Federal Supreme CouncilTy...

 

Georgian Civil War

1991–1993 ethnic civil war in Georgia This article is about the 1991–1993 civil war in Georgia. For the 15th century civil war in the Kingdom of Georgia, see Triarchy and collapse of the Kingdom of Georgia. For the American Civil War in the State of Georgia, see Georgia in the American Civil War. 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 2...

Democratic Party (South Korea, 2000)

2000–2007 political party in South Korea Millennium Democratic Party redirects here. For the party in East Timor, see Millennium Democratic Party (East Timor). Democratic Party 민주당民主黨AbbreviationMDPPresidentKim Dae-jung (until 2002)Founded20 January 2000[a]6 May 2005[b]Dissolved27 June 2007Merger ofNational Congress for New PoliticsNew People PartyMerged intoDemocratic Party (2007)Headquarters25-4, Yeouido-dong, Yeongdeungpo-gu, SeoulIdeologyLiberalism ...

 

波波羅古洛伊斯物語

此條目没有列出任何参考或来源。 (2018年7月19日)維基百科所有的內容都應該可供查證。请协助補充可靠来源以改善这篇条目。无法查证的內容可能會因為異議提出而被移除。 波波羅克洛伊斯物語 ポポロクロイス物語 Popolocrois 假名 ポポロクロイスものがたり 罗马字 Poporokuroisu monogatari 類型 奇幻、冒險 常用譯名 波波羅克洛伊斯物語 漫画 作者 田森庸介 出版社 Poplar社 連載雜...

 

Commonwealth (U.S. state)

Term used in U.S. state names For U.S. insular areas that designate themselves as Commonwealths, see Commonwealth (U.S. insular area). The four U.S. states (highlighted in green) that are designated Commonwealths: Kentucky, Massachusetts, Pennsylvania, and Virginia This article is part of a series onPolitical divisions ofthe United States First level State (Commonwealth) Federal district Territory (Commonwealth) Indian reservation (list) / Hawaiian home land / Alaska Native tribal entity / Pu...

Greg Heffley

Fictional character in the Diary of a Wimpy Kid series Fictional character Greg HeffleyDiary of a Wimpy Kid characterFirst appearanceDiary of a Wimpy Kid (2007 book)[a]Created byJeff KinneyDesigned byJeff KinneyPortrayed byZachary Gordon (2010–2012)Nathaniel Marten (2010, cameo as an adult in a flash-forward)Dylan Bell (2010, cameo as a kindergartener in a flashback)Jason Drucker (2017)Patrick Scott McDermott/Huxley Westemeier (Diary of a Wimpy Kid: The Musical)[2][3 ...

 

George V station

Paris Métro station George VStation platformsGeneral informationLocation101, av. des Champs-Élysées118, av. des Champs-Élysées8th arrondissement of ParisÎle-de-FranceFranceCoordinates48°52′19″N 2°18′02″E / 48.87194°N 2.30056°E / 48.87194; 2.30056Owned byRATPOperated byRATPOther informationFare zone1HistoryOpened1 August 1900; 124 years ago (1900-08-01)Previous namesAlma (1900–1920)Services Preceding station Paris Métro Following s...

 

Figure skating at the 1968 Winter Olympics

Olympic figure skating events in Grenoble 1968 Figure skating at the Winter OlympicsType:Olympic GamesVenue:Le Stade Olympique de GlaceChampionsMen's singles: Wolfgang SchwarzLadies' singles: Peggy FlemingPairs: Liudmila Belousova / Oleg ProtopopovNavigationPrevious: 1964 Winter OlympicsNext: 1972 Winter Olympics Figure skating at the 1968 Winter Olympics was held at Le Stade Olympique de Glace in Grenoble, France. Ice dance, then known as rhythmic skating, was a demonstration event and was ...

Li Shiji

Chinese Tang dynasty general (594–669) Li Shiji李世勣Portrait of Li ShijiBorn594Dongming County, Shandong, Sui ChinaDiedDecember 31, 669(669-12-31) (aged 75)Xi'an, Shaanxi, Tang ChinaOther namesMaogong (懋功/茂功)Xu Shiji (徐世勣)Li Ji (李勣)Duke Zhenwu of Ying (英貞武公)Occupation(s)Military general, politicianChildrenLi ZhenLi Siwentwo daughtersFatherXu GaiRelativesLi Bi (brother)Li Gan (brother)two sisters In this Chinese name, the family name is Li / Xú. Li Sh...

 

سغورو (دوديكانيسوس)

سغورو الإحداثيات 36°24′06″N 28°12′20″E / 36.401666666667°N 28.205555555556°E / 36.401666666667; 28.205555555556   تقسيم إداري  البلد اليونان[1]  عدد السكان  عدد السكان 1188 (2001)807 (1991)1703 (2021)914 (2011)276 (1951)[2]  رمز جيونيمز 11525159  تعديل مصدري - تعديل   سغورو (Σγουρού) هي مدينة في دوديك�...