Kepler-62

Kepler-62
Kepler-62
ClassificazioneNana arancione
Distanza dal Sole1200 anni luce
CostellazioneLira
Coordinate
(all'epoca J2000)
Ascensione retta18h 52m 51,059s
Declinazione+45° 20′ 59,51″
Dati fisici
Raggio medio0,64[1] R
Massa
0,69[1] M
Periodo di rotazione39,3 giorni[1]
Temperatura
superficiale
  • 4925±70 K[2] (media)
Luminosità
0,21[1] L
Metallicità43% rispetto al Sole[2]
Età stimata7±4 miliardi di anni
Dati osservativi
Magnitudine app.
  • 13,8 (media)
Magnitudine app.13,982
Moto proprioAR: -4,2 mas/anno
Dec: -26,3 mas/anno
Nomenclature alternative
2MASS J18525105+4520595, GPM 283.213142+45.350276, KIC 9002278, KOI-701.

Kepler-62 è una stella nella costellazione della Lira, distante 1200 anni luce circa dalla Terra. Il 18 aprile 2013 sono stati scoperti, nell'ambito della missione Kepler con il metodo del transito, cinque pianeti extrasolari orbitanti attorno ad essa, due dei quali, Kepler-62 e e Kepler-62 f, si trovano all'interno della zona abitabile della stella[1].

Caratteristiche fisiche

Kepler-62 è una stella nana arancione più piccola e fredda del Sole, avendo una massa stimata del 69% di quella della nostra stella, e una temperatura superficiale di 4925 K[2]. Avendo un raggio 0,64 volte quello del Sole, i modelli evolutivi stellari indicano che si tratta di una nana arancione di classe K2V o K3V.[3] L'età della stella è stimata in circa 7 miliardi di anni[1].

Sistema planetario

Il sistema di Kepler-62 rapportato al sistema solare interno.

I raggi dei pianeti scoperti sono compresi tra 0,54 e 1,95 raggi terrestri. Di particolare interesse sono i pianeti e ed f, pianeti rocciosi che orbitano all'interno della zona abitabile della loro stella, e di conseguenza possiedono condizioni favorevoli per avere acqua liquida in superficie, condizione indispensabile per ospitare forme di vita così come la conosciamo.

Questi due pianeti hanno un raggio rispettivamente di 1,61 e 1,41 volte quello della Terra e periodi orbitali rispettivamente di 122 e 267 giorni. Simulazioni al computer indicano che i pianeti potrebbero essere composti da roccia e ghiaccio, mentre la distanza dalla propria stella suggerisce che la quantità di luce ricevuta dai due pianeti è circa quella di Venere (per il pianeta e) e Marte (per il pianeta f)[4].

Prospetto sul sistema[1][5]

PianetaMassaRaggioPeriodo orb.Sem. maggioreIncl. orbitaScoperta
b2,2+1,6
−0,7
 M
1,31±0,04 r5,7149 giorni0,053 UA89,2°2013
c0,11+0,05
−0,04
 M
0,54 ± 0,03 R12,4417 giorni0,0929 UA89,7°2013
d4,8+3,8
−1,9
 M
1,95 ± 0,07 R18,1641 giorni0,120 UA89,7°2013
e3,6+1,4
−1,3
 M
1,61 ± 0,05 R122,3874 giorni0,427 UA89,98°2013
f3,3+2,3
−0,6
 M
1,41 ± 0,07 R267,291 giorni0,718 UA89,90°2013

Note

  1. ^ a b c d e f g William J. Borucki et al., Kepler-62: A Five-Planet System with Planets of 1.4 and 1.6 Earth Radii in the Habitable Zone (PDF), in Science, 18 aprile 2013, DOI:10.1126/science.1234702.
  2. ^ a b c Kepler discoveries Archiviato il 1º aprile 2017 in Internet Archive. NASA
  3. ^ Spettri stimati sulla base della sola temperatura, come esposto in A Modern Mean Stellar Color and Effective Temperatures (Teff)#Sequence for O9V-Y0V Dwarf Stars, sito di E. Mamajek accesso 27/01/2013
  4. ^ Scoperti due pianeti sosia della Terra: C'è acqua, potrebbero ospitare la vita, su repubblica.it, La Repubblica, 18 aprile 2013.
  5. ^ Yutong Shan, Gongjie Li, Obliquity Variations of Habitable Zone Planets Kepler-62f and Kepler-186f, in Astronomical Journal, vol. 155, n. 6, 2018.

Voci correlate

Altri progetti

Collegamenti esterni

  Portale Stelle: accedi alle voci di Wikipedia che trattano di stelle e costellazioni

Read other articles:

Державний комітет телебачення і радіомовлення України (Держкомтелерадіо) Приміщення комітетуЗагальна інформаціяКраїна  УкраїнаДата створення 2003Керівне відомство Кабінет Міністрів УкраїниРічний бюджет 1 964 898 500 ₴[1]Голова Олег НаливайкоПідвідомчі орг…

2022 compilation album by Various artistsTwo-Mix Tribute Album Crysta-RhythmCompilation album by Various artistsReleasedJuly 27, 2022 (2022-07-27)Recorded2022GenreJ-poppop rockdance-popanisonLanguageJapaneseLabelKing RecordsMusic videoTwo-Mix Tribute Album Crysta-Rhythm trailer 1 on YouTube Two-Mix Tribute Album Crysta-Rhythm is a various artists album paying tribute to J-pop duo Two-Mix, released by King Records on July 27, 2022. It features artists such as Angela, Nagi Y…

此條目可能包含不适用或被曲解的引用资料,部分内容的准确性无法被证實。 (2023年1月5日)请协助校核其中的错误以改善这篇条目。详情请参见条目的讨论页。 各国相关 主題列表 索引 国内生产总值 石油储量 国防预算 武装部队(军事) 官方语言 人口統計 人口密度 生育率 出生率 死亡率 自杀率 谋杀率 失业率 储蓄率 识字率 出口额 进口额 煤产量 发电量 监禁率 死刑 国债 外…

Danish-American actress (1895–1985) Ann ForrestAnn ForrestBornAnna Kromann(1895-04-14)14 April 1895Sønderho, DenmarkDied25 October 1985(1985-10-25) (aged 90)San Diego, California, U.S.Other namesAnne KornanAnn KornanAnn KromarmOccupationActressYears active1915–1931SpouseF. Steel Bain Ann Forrest (known also by her birth name Anna Kromann[1] and as Ann Kroman or Ann Kornan; 14 April 1895 – 25 October 1985) was a Danish-born American actress of Hollywood's silent film…

Arondisemen Bourg-en-Bresse Administrasi Negara Prancis Region Rhône-Alpes Departemen Ain Kanton 24 Komune 219 Prefektur Bourg-en-Bresse Statistik Luas¹ 3,105 km² Populasi  - 1999 295,351  - Kepadatan 95/km² Lokasi Lokasi Bourg-en-Bresse di Rhône-Alpes. ¹ Data Pendaftaran Tanah Prancis, tak termasuk danau, kolam, dan gletser lebih besar dari 1 km² (0.386 mi² atau 247 ekar) juga muara sungai. Arondisemen Bourg-en-Bresse merupakan sebuah arondisemen di Prancis, terletak d…

世界空手道聯盟World Karate FederationWKF運動項目空手道轄區 全世界成立年份1970年10月10日[1][2][3]歸屬國際奧林匹克委員會總部 西班牙馬德里會長 Antonio Espinós官網www.wkf.net 世界空手道聯盟(英語:World Karate Federation,縮寫:WKF)是空手道最大的國際管理組織,擁有191個會員國[4] 。旗下的主要比賽有世界空手道錦標賽,它的總部設在西班牙首都馬德里…

Anonymous PhilippinesWilayahLokal Filipina International USADidirikan2008 Manila, Phillipines,Umat600 sampai 1.000 anggotaNama lainAng Organisasyon Anonymous Philippines adalah kelompok besar hacker yang beroperasi dan berasal dari Filipina. Kelompok hacker itu dari mantan anggota Golden Dragon dan kelompok-kelompok hacker kecil lainnya.[1] Sejarah 'Anonymous Philippines' dibentuk pada tahun 2008 oleh mahasiswa University of San Carlos, kampus Talamban dan sekutunya thier dalam jaringan …

VfL BochumNama lengkapVfL Bochum 1848 e.V.JulukanDie Unabsteigbaren (Yang tak tergoyahkan)Der Blau (Si biru)Berdiri26 Juli 1848; 175 tahun lalu (1848-07-26)StadionRuhrstadion(Kapasitas: 27.599)Ketua Hans-Peter VillisManajer Thomas LetschLigaBundesliga2022–2023Bundesliga, ke-14 dari 18Situs webSitus web resmi klub Kostum kandang Kostum tandang Kostum ketiga Musim ini VfL Bochum adalah klub sepak bola Jerman yang berbasis di kota Bochum. Klub ini belum pernah sekalipun menorehkan prest…

Johanna SpyriJohanna Spyri, 1879LahirJohanna Louise Heusser(1827-06-12)12 Juni 1827Hirzel, SwissMeninggal7 Juli 1901(1901-07-07) (umur 74)Zürich, SwissPekerjaanPenulis cerita pendek, novelisGenreChildren's literature, sastra dewasaKarya terkenalHeidi Johanna Louise Spyri (née Heusser; Jerman: [joˈhana ˈʃpiːri]; 12 Juni 1827 – 7 Juli 1901) adalah seorang penulis novel Swiss, terutama cerita anak-anak, dan terkenal karena bukunya Heidi. Lahir di Hirzel, daer…

Unit of volume 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: Cubic inch – news · newspapers · books · scholar · JSTOR (February 2022) (Learn how and when to remove this message) Cubic inchAn engine with a swept piston displacement of 502 cubic inchesGeneral informationUnit systemNonstandardUnit ofvolumeS…

Korean diplomat (1874–1905) Photo of Yi Han-eung Yi Han-eung (Korean: 이한응; Hanja: 李漢應; 30 October 1874 – 12 May 1905) was a Korean diplomat in London, UK. He served as Charge d'Affaires of the Korean Emperor Gojong to the UK and Italy when the Korean Peninsula was about to be occupied by the Japanese.[1] He made efforts to keep his nation independent in the era of imperialism, but eventually committed suicide in his office on Trebovir Road in London …

This article relies excessively on references to primary sources. Please improve this article by adding secondary or tertiary sources. Find sources: The Bull & Bear – news · newspapers · books · scholar · JSTOR (July 2018) (Learn how and when to remove this message) 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 so…

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada Februari 2023. After the MagicAlbum studio karya ParannoulDirilis28 Januari 2023GenreShoegazeDurasi59:05LabelTopshelfProduserParannoulKronologi Parannoul Paraglow(2022) After the Magic(2023) Singel dalam album After the Magic InsomniaDirilis: 9 November 2022 We Shi…

Плід несправжній (ягода несправжня) полуниці Плід несправжній (плід яблукоподібний) яблуні Несправжній плід (псевдоплід, лат . pseudofructus ) — орган покритонасінних рослин, що містить насіння, яке, на відміну від справжніх плодів, утворюється не лише зі стінок зав’язі маточки, …

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. (ديسمبر 2018) هذه المقالة يتيمة إذ تصل إليها مقالات أخرى قليلة جدًا. فضلًا، ساعد بإضافة وصلة إليها في مقالات متعلقة بها. (…

Simplified netfilter interface Uncomplicated FirewallStable release0.36-7[1] / October 22, 2020; 3 years ago (2020-10-22) Repositorygit.launchpad.net/ufw Written inPythonOperating systemLinuxLicenseGNU General Public LicenseWebsitelaunchpad.net/ufw, manpages.ubuntu.com/manpages/bionic/en/man8/ufw.8.html Uncomplicated Firewall (UFW) is a program for managing a netfilter firewall designed to be easy to use. It uses a command-line interface consisting of a small number of …

« La Bille Bleue » : vue de la Terre par l'équipage d'Apollo 17 lors de leur voyage vers la Lune. Les droits de la nature sont un concept relativement récent, qui résultent de la conscience des dégâts provoqués par l'homme à la nature. Vu la dégradation du biotope, et aussi pour des raisons éthiques, des instances en Occident et à tous les niveaux (ONU, Union européenne, nations européennes), se préoccupent d’accorder des droits à la nature. L’étendue de ces d…

Embankment built in the shape of a circle Artist's impression of the circular rampart of Burg, near Celle, Germany A circular rampart (German: Ringwall)[1] is an embankment built in the shape of a circle that was used as part of the defences for a military fortification, hill fort or refuge, or was built for religious purposes or as a place of gathering. The period during which these structures were built ranged from the Neolithic to the Middle Ages. Construction Varbola ruins in Estonia…

Antônio Augusto Cançado Trindade Hakim Mahkamah InternasionalPetahanaMulai menjabat 2009 Informasi pribadiKebangsaanBrasilProfesiHakim, yurisSunting kotak info • L • B Antônio Augusto Cançado Trindade adalah seorang yuris (ahli hukum) asal Brasil yang dikenal akan kiprahnya sebagai hakim pada Mahkamah Internasional. Ia mulai menjabat sebagai hakim pada mahkamah tersebut pada tahun 2009.[1] Referensi ^ All Members: Members of the Court past and present. Mahkamah Inte…

Diagrams used to identify water masses T-S diagram of a station in the North Pacific In oceanography, temperature-salinity diagrams, sometimes called T-S diagrams, are used to identify water masses. In a T-S diagram, rather than plotting each water property as a separate profile, with pressure or depth as the vertical coordinate, potential temperature (on the vertical axis) is plotted versus salinity (on the horizontal axis). As long as it remains isolated from the surface, where heat or fresh w…