克卜勒46

克卜勒46
Kepler-46
KOI-872

觀測資料
曆元 J2000
星座 天鵝座
星官
赤經 19h 17m 4.449s[1]
赤緯 42° 36′ 15.03″[1]
視星等(V)
特性
光谱分类未知
视星等 (H)13.436[1]
视星等 (K)13.347[1]
天体测定
距离2795 ± 226 ly
(857 ± 69 pc)
詳細資料
質量0.902 ± 0.04[2] M
半徑0.94 ± 0.04[2] R
亮度0.868 ± 0.155(預測)[note 1] L
溫度5155 ± 105[2] K
金属量 [Fe/H]0.41 ± 0.1[2][note 2] dex
年齡9.9 +3.5-3.1[2] Gyr
其他命名
2MASS J19170449+4236150, KIC 7109675[1]

克卜勒46Kepler-46),舊稱KOI-872,是一個位於天鵝座的恆星。該恆星旁已經由分析克卜勒太空望遠鏡初級資料的方式發現系外行星克卜勒46b,並且再以該太空望遠鏡公開資料經由凌日時間變分法發現第二顆行星克卜勒46c。當該系統只確定一顆行星時,有分析指有一顆至今未確定的行星克卜勒46d或系外衛星存在。如果獲得確認,將是首次在太陽系外發現天然衛星

恆星概況

克卜勒46本身年齡大約是100億年,質量大約是太陽的90%。它的表面溫度和半徑與太陽相當[2]

行星系

本系統第二顆被發現的行星是以第一顆行星資料經由凌日時間變分法發現;而克卜勒46c 存在的信心水準達到99%,因此該法可以是未來偵測太陽系外行星甚至系外衛星的方式[3]。第二顆行星對公轉周期只有34日的第一顆行星產生重力牽引。這狀況通常發生在極其穩定系統遇上外在行星擾亂固有行星凌日時間,凌日時間的變化就可指出其他行星的存在,甚至是擾亂固有行星凌日時間的行星不產生凌日現象的狀態下也可偵測出[3]

資料顯示克卜勒46c的質量相當於土星,公轉周期57日[3]。因為行星本身不產生凌日現象,無法得知體積。量測顯示另有一顆公轉周期6.8日行星,但尚未確認[2]

第二顆行星的發現方式類似於發現海王星的方式,即新發現的行星對已知行星產生重力牽引作用[4]

克卜勒46的行星系[2]
成員
(依恆星距離)
质量 半長軸
(AU)
轨道周期
()
離心率 傾角 半径
b <6 MJ 0.1967 ± 0.0029 33.60134 ± 0.00021 0.01 ± 0.01 0.812 ± 0.043 RJ
c 0.376 ± 0.023 MJ 0.2799 ± 0.0041 57.004 +0.091-0.1 0.01 ± 0.01
d (未确认) ? 0.068 ± 0.003 6.76671 ± 0.00013 ?

參考資料

  1. ^ 1.0 1.1 1.2 1.3 1.4 Basic data: 2MASS J19170449+4236150. SIMBAD. University of Stratsbourg. 2012 [May 16, 2012]. 
  2. ^ 2.0 2.1 2.2 2.3 2.4 2.5 2.6 2.7 Schneider, Jean. Notes for Star KOI-872. Extrasolar Planets Encyclopaedia. [May 16, 2012]. [永久失效連結]
  3. ^ 3.0 3.1 3.2 Moskowitz, Clara. Hidden Alien Planet Revealed by Its Own Gravity. Space.com. Space.com. May 10, 2012 [May 10, 2012]. (原始内容存档于2012-05-12). 
  4. ^ Crockett, Cristopher. New planet found in distant solar system by its tug on another world. EarthSky. Earthsky Communications. May 12, 2012 [May 19, 2012]. (原始内容存档于2012-05-15). 

注釋

  1. ^ 使用以下公式計算:.
  2. ^ 本量測指示相對於太陽鐵含量的log10對數。

Read other articles:

Ledakan sinar gama GRB 080319B. GRB 080319B adalah semburan sinar gama yang ditemukan pada 19 Maret 2008 oleh Teleskop Swift NASA.[1] Ledakan GRB 080319B melepaskan energi dalam jumlah besar di dalam spektrum elektromagnetik, dan dengan demikian memberi jendela ke dalam proses pembentukan lubang hitam dari runtuhnya bintang-bintang masif dan merupakan salah satu sinar gama paling kuat bersama dengan GRB 130427A.[2][3] Pengamatan optik menunjukkan cahaya optik, sinar ga...

 

Hellbrunner Berg Hellbrunner Berg vom Nonnberg aus gesehen Höhe 515 m ü. A. Lage Hellbrunn, Stadt Salzburg Gebirge Berchtesgadener Alpen Dominanz 1,78 km → Hengstberg Schartenhöhe 76 m ↓ Anif Koordinaten 47° 45′ 34″ N, 13° 3′ 59″ O47.75944444444413.066388888889515Koordinaten: 47° 45′ 34″ N, 13° 3′ 59″ O Hellbrunner Berg (Land Salzburg) Typ Inselberg Gestein Konglomerat Alt...

 

Dieser Artikel erläutert die Gemeinde, den Ort dieser Gemeinde siehe Pfafflar (Gemeinde Pfafflar). Pfafflar Wappen Österreichkarte Pfafflar (Österreich) Basisdaten Staat: Österreich Bundesland: Tirol Politischer Bezirk: Reutte Kfz-Kennzeichen: RE Hauptort: Bschlabs Fläche: 33,63 km² Koordinaten: 47° 17′ N, 10° 37′ O47.28333333333310.6166666666671314Koordinaten: 47° 17′ 0″ N, 10° 37′ 0″ O Höhe: 1314 m ü.&#...

لابيتامعلومات عامةنسبة التسمية Lapita (de) البداية 1500 ق.م المنطقة ميلانيزيا — ساموا — تونغا تعديل - تعديل مصدري - تعديل ويكي بيانات المنطقة التي عُثر فيها على فخار لابيتا 21°06′10″S 164°47′56″E / 21.10277778°S 164.79888889°E / -21.10277778; 164.79888889 ثقافة لابيتا هو الاسم الذي يُطلق على الشعب

 

Ten artykuł dotyczy Senatu RP kadencji 1997–2001. Zobacz też: Senat RP kadencji 1935–1938. Polska Ten artykuł jest częścią serii:Ustrój i politykaPolski System prawny Konstytucja Ustrój polityczny Władza ustawodawcza Sejm RP Posłowie X kadencji Marszałek Sejmu: Szymon Hołownia Senat RP Senatorowie XI kadencji Marszałek Senatu: Małgorzata Kidawa-Błońska Zgromadzenie Narodowe Władza wykonawcza Prezydent: Andrzej Duda Prezes Rady Ministrów: Mateusz Morawiecki Rada Ministró...

 

Pour les articles homonymes, voir 5e brigade. 5e brigade de la Garde nationale Écusson d'épaule. Création 1992 - aujourd'hui Pays Ukraine Allégeance Forces armées de l'Ukraine Branche Armée de terre ukrainienneGarde nationale de l'Ukraine Type Brigade Fait partie de Commandement opérationnel Est Garnison Kharkiv, Ukraine Guerres invasion de l'Ukraine par la Russie en 2022 Batailles Bataille de Kharkiv de 2022[1]Bataille de la ligne Svatove-Kreminna[2] modifier  La 5e...

Top Fantasy: The Authors' Choice Dust cover of first edition, 1985Authoredited by Josh PachterCountryUnited KingdomLanguageEnglishSeriesAuthors' ChoiceGenreFantasyPublisherJ. M. DentPublication date1985Media typePrint (hardcover)Pages311 pp.ISBN0-460-04659-4Preceded byTop Horror: The Authors' Choice  Top Fantasy: The Authors' Choice is an anthology of fantasy short stories edited by Josh Pachter, the fourth in his series of Authors' Choice anthologies.[1] It was first p...

 

Military journey undertaken to punish a state The American punitive expedition against Malolo, Fiji in 1840 by Alfred Agate A punitive expedition is a military journey undertaken to punish a political entity or any group of people outside the borders of the punishing state or union. It is usually undertaken in response to perceived disobedient or morally wrong behavior by miscreants, as revenge or corrective action, or to apply strong diplomatic pressure without a formal declaration of war (e...

 

Former railway station in Scotland 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: Old Meldrum railway station – news · newspapers · books · scholar · JSTOR (June 2013) (Learn how and when to remove this template message) Old MeldrumThe site of the station in 2017General informationLocationOld Meldrum, Aberd...

国連軍司令部United Nations Command : UNC国際連合の旗創設1950年7月国籍18か国[1]兵力50人余(2019年)[1]基地 大韓民国 京畿道平沢市ハンフリーズ基地[1]主な戦歴朝鮮戦争識別バッヂ表話編歴 朝鮮半島 (韓半島)における国連軍(こくれんぐん、英: United Nations Command・UNC、韓国語: 유엔군)は、1950年に勃発した朝鮮戦争において組織された多国籍軍であ...

 

У этого термина существуют и другие значения, см. ЧАЗ. Чка́ловский авто́бусный заво́д Автобус Таджикистан-3205 в Томске в мае 2014 года Год основания 1953 Прежние названия Чкаловский авторемзавод Расположение  Таджикистан, Бустон, ул. Гурьянова, 1 Ключевые фигуры Додоходжае...

 

Ancient Greek currency This article is about the currency used in ancient Greece. For other uses, see drachma. In ancient Greece, the drachma (Greek: δραχμή, romanized: drachmḗ, [drakʰmέː]; pl. drachmae or drachmas) was an ancient currency unit issued by many city-states during a period of ten centuries, from the Archaic period throughout the Classical period, the Hellenistic period up to the Roman period. The ancient drachma originated in the Greece around the 6th cen...

Esta página cita fontes, mas que não cobrem todo o conteúdo. Ajude a inserir referências. Conteúdo não verificável pode ser removido.—Encontre fontes: ABW  • CAPES  • Google (N • L • A) (Janeiro de 2013) Igreja de Nossa Senhora da Conceição da Praia Basílica Nossa Senhora da Conceição da PraiaIgreja de Nossa Senhora da Conceição da Praia vista da Baía de Todos-os-Santos Estilo dominante barroco Arquiteto Manuel Car...

 

Spicy Asian or Asian-influenced dishes Bhuna redirects here. For the place, see Bhuna, Fatehabad. For other uses, see Curry (disambiguation). CurryIndian curriesPlace of originIndian subcontinentRegion or stateWorldwideMain ingredientsMeat or vegetables, oil or ghee, spices  Media: Curry Curry is a dish with a sauce seasoned with spices, mainly associated with South Asian cuisine.[1][2] In southern India, leaves from the curry tree may be included.[3][4 ...

 

ConsulJonas M. LiedLied photographed by Fridtjof Nansen on 1913 voyageBorn(1881-06-17)17 June 1881Sølsnes, VeøyDied25 April 1969(1969-04-25) (aged 87)Sølsnes, MoldeResting placeOld Veøy ChurchNationalityNorwegianCitizenshipNorway, Russia/Soviet UnionOccupation(s)businessperson, diplomatYears active1900–1946Known forbusiness in Russia, art collectionNotable workReturn to Happiness Jonas Marius Lied (17 July 1881 in Sølsnes, Veøy – 25 April 1969 at Sølsnes, Molde) was ...

Appearances by the Egyptian actress Soad Hosny filmography Soad Hosny in Those People of the Nile (1972) Filmography: Feature films 91 Stage 1 TV series 1 Broadcast series 12 Soad Hosny (Egyptian Arabic: سعاد حسنى, pronounced [soˈʕæːd ˈħosni]; January 26, 1943[1] – June 21, 2001) was an Egyptian[2] actress born in Cairo, Egypt. She was known as the Cinderella of Egyptian cinema and one of the most influential actresses in Africa and the Arab world.[...

 

Lambang percetakan yang digunakan oleh Zakharias Kalliergis. Zakharias Kalliergis (bahasa Yunani: Ζαχαρίας Καλλιέργης, translit. Zakharías Kalliérgis) adalah cendekiawan Yunani.[1] Dia lahir di Kreta, yang saat itu merupakan daerah jajahan Venesia, kemudian pindah ke Roma saat masih belia. Pada tahun 1499, dia membantu menyunting dan merevisi Mega Etymologikon di Venesia[2] dan pada tahun 1515, dia mendirikan sebuah percetakan di mana dia menerbitk...

 

Church in Telemark, Norway Church in Vestfold og Telemark, NorwayEidsborg Stave ChurchEidsborg stavkyrkjeView of the church59°27′52″N 8°01′19″E / 59.464564°N 8.0219898°E / 59.464564; 8.0219898LocationTokke Municipality,Vestfold og TelemarkCountryNorwayDenominationChurch of NorwayPrevious denominationCatholic ChurchChurchmanshipEvangelical LutheranHistoryStatusParish churchFoundedc. 1250ArchitectureFunctional statusActiveArchitectural typeLong churchComplete...

Brazilian mixed martial arts (MMA) fighter Patricky PitbullBornPatricky Freire (1986-01-21) January 21, 1986 (age 37)Mossoró, Rio Grande do Norte, BrazilResidenceNatal, Rio Grande do Norte, BrazilNationalityBrazilianHeight5 ft 7 in (1.70 m)Weight155 lb (70 kg; 11.1 st)DivisionLightweightReach71 in (180 cm)StyleKickboxing, BJJFighting out ofNatal, Rio Grande do Norte, BrazilTeamPitbull BrothersRankBlack belt in Brazilian jiu-jitsuYears active2005...

 

U.S. House district for Michigan Michigan's 8th congressional districtInteractive map of district boundaries since January 3, 2023Representative  Dan KildeeD–Flint TownshipPopulation (2022)768,166Median householdincome$57,526[1]Ethnicity82.6% White5.5% Black4.7% Hispanic4.2% Asian2.7% Two or more races0.3% otherCook PVIR+1[2] Michigan's 8th congressional district is a United States congressional district in Central Michigan. The district was first created in 1873, after...

 

Strategi Solo vs Squad di Free Fire: Cara Menang Mudah!