우주에서의 지구의 위치

우주에서 지구의 위치에 대한 지식은 근 400년 동안 망원경 관찰로 축적된 자료에 바탕이 되었고 20세기에 들어서 기하급수적으로 팽창하였다. 초기에는 맨눈으로 볼 수 있는 행성들과 고대의 행성들로 만들어진 지구 위주의 지구중심설이 거론되었지만, 17세기에 들어서 태양중심설이 받아들여지고 윌리엄 허셜을 포함한 다른 과학자들의 관측으로 인해 태양은 디스크 모양의 방대한 은하 사이에 존재하는 수많은 항성들 중 하나인 것을 밝혀냈다. 20세기에는 나선 은하의 관측으로 인해 우리 은하는 팽창하는 우주안에 존재하는 수십억 개의 은하 중 하나일 뿐인 것을 밝혀냈으며 두 가지 부류인 은하단과 초은하단으로 나뉘었다. 21세기에 들어서는 초은하단이 복잡한 은하 필라멘트와 초공동으로 형성되면서 관측 가능한 우주의 구조에 대한 지식이 더욱 정확하고 확실해지고 있다. 초은하단, 은하 필라멘트와 초공동은 아마도 우주에서 가장 크고 일관성있는 구조일 것이다. 커다란 규모에서는 (1000 메가파섹 이상) 우주가 균질적으로 변하며 모든 구성원들은 평균 밀도, 구성, 구조가 같아진다.[1]

우주에는 "중심"이나 "끝"이 없기 때문에 지구의 위치를 쉽게 설명할 수 있는 기준점이 없다.[2] 하지만 관측가능성은 지구의 거리에 기준하기 때문에 지구는 관측 가능한 우주의 중심에 있다. 이 특성을 이용하면 지구와 또 다른 우주의 특정 구조를 이용하여 기준점을 만들 수 있다. 현재로써는 우주가 무한한지 확실치 않으며, 우리의 우주가 다른 수많은 우주 중 하나일 것이라는 추측도 나오고 있다.

관측 가능한 우주상 지구의 위치 도표. (더 큰 이미지를 보려면 여기를 클릭하세요.)

같이 보기

각주

  1. ↑ Robert P Kirshner (2002). 《The Extravagant Universe: Exploding Stars, Dark Energy and the Accelerating Cosmos》. Princeton University Press. 71쪽. ISBN 0691058628. 
  2. ↑ Klaus Mainzer and J Eisinger (2002). 《The Little Book of Time》. Springer. ISBN 0387952888. . P. 55.

Read other articles:

Panjang ikatan

Struktur dan dimensi dari molekul SOCl2. Dimensi yang diberikan adalah rata-rata dimensi yang ditentukan oleh spektroskopi gelombang mikro[1] dan kristalografi sinar-X.[2] Dalam geometri molekul, panjang ikatan atau jarak ikatan adalah jarak rata-rata antara inti dua atom yang terikat dalam molekul. Hal ini adalah salah satu sifat yang dapat dipindahkan dari ikatan antara atom dari jenis tetap, yang relatif independen dari molekul tersebut. Panjang ikatan berhubungan dengan or...

 

Undang-undang

Artikel ini tidak memiliki referensi atau sumber tepercaya sehingga isinya tidak bisa dipastikan. Tolong bantu perbaiki artikel ini dengan menambahkan referensi yang layak. Tulisan tanpa sumber dapat dipertanyakan dan dihapus sewaktu-waktu.Cari sumber: Undang-undang – berita · surat kabar · buku · cendekiawan · JSTOR Untuk peraturan perundang-undangan di Indonesia, lihat Undang-Undang (Indonesia). Undang-undang adalah peraturan perundang-undangan yang ...

 

Jacob Nienhuys

Jacob Nienhuys (1836-1928) Rumah Nienhuys di Herengracht, Amsterdam Jacob Nienhuys (1836-1928) adalah orang Belanda pertama yang menjadi pengusaha perkebunan tembakau di Hindia Belanda. Ia tiba pada tahun 1863, dan kemudian mendirikan Deli Maatschappij pada tahun 1869 setelah mendapat konsesi dari Kesultanan Deli. Dengan demikian, ia merupakan pionir budidaya tembakau di pantai timur Sumatra, dan kemudian juga di Sumatera Utara. Nienhuys tinggal di sebuah kastil di tengah kota Amsterdam yang ...

Guerra dei sette anni

Guerra dei sette anniQuadri raffiguranti alcuni dei più importanti scontri della guerra dei sette anni: da in alto a sinistra procedendo in senso orario, la battaglia di Plassey, la battaglia di Fort Carillon, la battaglia di Zorndorf e la battaglia di KunersdorfData1756-1763 LuogoEuropa, America, India, Africa Casus belliInvasione prussiana della Sassonia EsitoTrattato di San PietroburgoTrattato di ParigiTrattato di Hubertusburg Modifiche territoriali Nessun mutamento territoriale in Europa...

 

Paramount Network (Spanish TV channel)

Spanish pay television network Television channel Paramount NetworkLogo for Paramount Network Spain as of 2018Broadcast areaSpain, AndorraHeadquartersMadrid, SpainProgrammingPicture format1080i HDTVOwnershipOwnerParamount Networks EMEAASister channelsMTVComedy CentralNickelodeonNick Jr.HistoryLaunchedMarch 30, 2012; 12 years ago (2012-03-30)Former namesParamount Channel(2012–2018)LinksWebsitehttp://www.paramountnetwork.es/ Paramount Network (Formerly Paramount Channel) is ...

 

Michele Canini

Michele Canini Canini con la maglia dell'Atalanta nel 2013. Nazionalità  Italia Altezza 187 cm Peso 87 kg Calcio Ruolo Difensore Termine carriera 12 dicembre 2019 Carriera Giovanili 1992-1993Padernese1993-2004 Atalanta Squadre di club1 2004-2005→  Sambenedettese31 (0)[1]2005-2012 Cagliari176 (2)2012-2013 Genoa14 (0)2013-2014 Atalanta20 (0)2014→  Chievo6 (0)2014-2015→  FC Tokyo10 (0)2015-2016→  Ascoli25 (0)2016-2017→  Parma2...

Mohamed Ould Ghazouani

Mohamed Ould GhazouaniMohamed Ould Ghazouani (2019) Presiden Mauritania ke-9PetahanaMulai menjabat 1 Agustus 2019Perdana MenteriMohamed Salem Ould BéchirIsmail Ould Bedde Ould Cheikh SidiyaPendahuluMohamed Ould Abdel AzizPenggantiPetahanaMenteri Pertahanan MauritaniaMasa jabatanOktober 2018 – 15 Maret 2019PresidenMohamed Ould Abdel AzizPerdana MenteriMohamed Salem Ould BéchirPendahuluJallow Mamadou BhatiaPenggantiYahya Ould HademineKepala Staf Angkatan DaratMasa jabatan2008�...

 

Selat Magelhaens

Artikel ini tidak memiliki referensi atau sumber tepercaya sehingga isinya tidak bisa dipastikan. Tolong bantu perbaiki artikel ini dengan menambahkan referensi yang layak. Tulisan tanpa sumber dapat dipertanyakan dan dihapus sewaktu-waktu.Cari sumber: Selat Magelhaens – berita · surat kabar · buku · cendekiawan · JSTORSelat MagellanSelat Magellan di ujung selatan Amerika SelatanLetakRegion Magallanes, ChiliJenis perairanSelatTerletak di negaraChili, A...

 

Новотитаровское сельское поселение

Сельское поселение России (МО 2-го уровня)Новотитаровское сельское поселение Флаг[d] Герб 45°14′09″ с. ш. 38°58′16″ в. д.HGЯO Страна  Россия Субъект РФ Краснодарский край Район Динской Включает 4 населённых пункта Адм. центр Новотитаровская Глава сельского пос�...

哈萨克斯坦总统

此条目序言章节没有充分总结全文内容要点。 (2019年3月21日)请考虑扩充序言，清晰概述条目所有重點。请在条目的讨论页讨论此问题。 哈萨克斯坦總統哈薩克總統旗現任Қасым-Жомарт Кемелұлы Тоқаев卡瑟姆若马尔特·托卡耶夫自2019年3月20日在任任期7年首任努尔苏丹·纳扎尔巴耶夫设立1990年4月24日（哈薩克蘇維埃社會主義共和國總統） 哈萨克斯坦 哈萨克斯坦政府...

 

Hans-Ulrich Klose

Ne doit pas être confondu avec Hans-Ulrich Klose (homme politique, 1935). Pour les articles homonymes, voir Klose. Hans-Ulrich Klose Hans-Ulrich Klose, alors premier bourgmestre de Hambourg, en 1978. Fonctions Vice-président du Bundestag 10 novembre 1994 – 26 octobre 1998(3 ans, 11 mois et 16 jours) Président Rita Süssmuth Législature 13e Groupe politique SPD Prédécesseur Helmuth Becker etRenate Schmidt Successeur Anke Fuchs Président du groupe SPD au Bundestag 12 no...

 

Wilkie Cooper

British cinematographer On set of The Hasty Heart (1949), L-R: Patricia Neal, Vincent Sherman (director) and Wilkie Cooper Wilkie Cooper BSC (19 October 1911 – 15 December 2001) was a British cinematographer.[1] Cooper was born in London, the son of the silent era cinematographer Douglas Percival Cooper. His early career included Green for Danger (1946) and London Belongs to Me (1948) for producer-director team Frank Launder and Sidney Gilliat, Stage Fright (1950) for Alfred Hit...

Questing (horse)

British-bred Thoroughbred racehorse QuestingSireHard SpunGrandsireDanzigDamChercheuseDamsireSeeking the GoldSexFillyFoaled13 April 2009CountryUnited KingdomColourBayBreederDarley StudOwnerGodolphin RacingTrainerJohn GosdenKiaran McLaughlinRecord11:4-2-1Earnings£565,135Major winsCoaching Club American Oaks (2012)Alabama Stakes (2012)AwardsAmerican Champion Three-Year-Old Filly (2012) Questing (foaled 2009) is a British-bred Thoroughbred filly. After beginning her career in England she was tra...

 

Comté de Bolivar

Cet article est une ébauche concernant le Mississippi. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Comté de Bolivar(Bolivar County) Grover Hotel dans le quartier historique du centre-ville de Cleveland. Administration Pays États-Unis État Mississippi Chef-lieu Rosedale & Cleveland Fondation 1836 Démographie Population 40 633 hab. (2000) Densité 18 hab./km2 Géographie Coordonnées 33...

 

Bermuda II Agreement

1977 agreement between the United Kingdom and United States Bermuda II was a bilateral air transport agreement between the governments of the United Kingdom and the United States signed on 23 July 1977 as a renegotiation of the original 1946 Bermuda air services agreement.[1][2][3] A new open skies agreement was signed by the United States and the European Union (EU) (of which the United Kingdom was part) on 30 April 2007 and came into effect on 30 March 2008, thus rep...

لواء (الولايات المتحدة)

  لمعانٍ أخرى، طالع لواء (توضيح). لواء لواء (الولايات المتحدة) الدولة الولايات المتحدة  الرتبة الأعلى فريق  [لغات أخرى]‏  الرتبة الأدنى عميد  تعديل مصدري - تعديل   اللواء (بالإنجليزية: major general)‏ هو ضابط برتبة نجمتين في القوات المسلحة الأمريكية، وجيش الو�...

 

Mundus Alter et Idem

Mundus alter et idem adalah novel distopia satir yang ditulis oleh Joseph Hall ca 1605. Judulnya telah diterjemahkan ke dalam bahasa Inggris sebagai An Old World and a New, The Discovery of a New World, dan Another World and Yet the Same. Meskipun teks tersebut menyebutkan Mercurius Britannicus sebagai penulisnya, Thomas Hyde menganggapnya berasal dari Hall pada tahun 1674. Peta dari Mundus alter et idem. Sinopsis Narator melakukan perjalanan dengan kapal Fantasia, di laut selatan, meng...

 

List of electoral systems

A joint Politics and Economics seriesSocial choice and electoral systems Social choiceMechanism designComparative politicsComparisonList (By country) Single-winner methodsSingle vote - plurality methods First preference plurality (FPP) Two-round (US: Jungle primary) Partisan primary Instant-runoff UK: Alternative vote US: Ranked-choice (RCV) Condorcet methods Condorcet-IRV Round-robin voting Minimax Schulze Ranked pairs Maximal lottery Positional voting Plurality (el. IRV) Borda count (el. B...

Lismore Circus

Street and housing estate in London, England Lismore Circus estate in 2010. Lismore Circus is a housing estate located in Gospel Oak in the London Borough of Camden. Constructed in the 1960s and 1970s it replaced the older road layout centred on the circular street of the same name. Lismore Circus takes its name from the Irish aristocrat Cornelius O'Callaghan, 1st Viscount Lismore who owned the land on which it was built on.[1] In 1855 he envisaged it and the surrounding streets to be...

 

Edward Soriano

American retired military officer (born 1946) Edward SorianoSoriano in 2009Born (1946-11-12) 12 November 1946 (age 77)Alcala, Pangasinan, Philippines[1]AllegianceUnited StatesService/branchUnited States ArmyYears of service1970–2005RankLieutenant generalUnit82d Airborne Division3d Infantry Division1st Infantry DivisionCommandsI Corps7th Infantry DivisionBattles/warsOperation Desert ShieldGulf WarOperation Joint EndeavorAwardsArmy Distinguished Service Medal (2)Defense Supe...