HD 20367

HD 20367
星座	おひつじ座
見かけの等級 (mv)	6.40^[1]
位置元期:J2000.0
赤経 (RA, α)	03^h 17^m 40.0469^s^[2]
赤緯 (Dec, δ)	+31° 07′ 37.361″^[2]
視線速度 (Rv)	6.482 km/s^[2]
固有運動 (μ)	赤経: -101.987 ミリ秒/年^[2] 赤緯: -58.004 ミリ秒/年^[2]
年周視差 (π)	37.81 ± 0.57ミリ秒^[2] （誤差1.5%）
距離	86 ± 1 光年^{[注 1]} （26.4 ± 0.4 パーセク^{[注 1]}）
絶対等級 (MV)	4.3^{[注 2]}
軌道要素と性質
惑星の数	1
物理的性質
半径	1.20 R_☉^[1]
質量	1.15 M_☉^[1]
表面重力	36 G^[3]^{[注 3]}
自転速度	3.0 km/s^[4]
スペクトル分類	G0 V^[1]
光度	1.73 L_☉^[1]
表面温度	6,039 K^[1]
色指数 (B-V)	0.56^[1]
金属量[Fe/H]	0.14（太陽比）^[3]
年齢	9 ×10⁸ 年^[4]
他のカタログでの名称
AG+30 340, BD+30 520, GC 3929, GCRV 1814, GSC 02340-01798, HIP 15323, IRAS 03146+3056, PPM 68307, SAO 56323, TD1 2046, TYC 2340-1798-1.^[2]
■Template （■ノート ■解説） ■Project

HD 20367は、おひつじ座のペルセウス座との境目に非常に近い方角に、約86光年^[2]離れた位置にある6等級の恒星である。太陽よりも若干大きく、温度や金属量も太陽より上で、若い恒星だとみられる。

大きさの比較
太陽	HD 20367

惑星系

2002年6月、オート＝プロヴァンス天文台における視線速度法の観測から、およそ500日の公転周期を持つ木星質量程度の太陽系外惑星が軌道離心率の大きい軌道を描いてHD 20367の周囲を公転していると発表された^[5]。

しかしその後、ホビー・エバリー望遠鏡などによる視線速度の追観測からは、視線速度の変化にHD 20367の周囲を天体が公転することによる周期性はみられないという結果になり、惑星の存在は疑わしくなっている^[4]。

HD 20367の惑星^[6]
名称（恒星に近い順）	質量	軌道長半径（天文単位）	公転周期 (日)	軌道離心率	軌道傾斜角	半径
b	> 1.17 M_J	1.25	469.5 ± 9.3	0.32 ± 0.09	—	—

脚注

注釈

^ ^a ^b パーセクは1 ÷ 年周視差（秒）より計算、光年は1÷年周視差（秒）×3.2615638より計算
^ 視等級 + 5 + 5×log（年周視差（秒））より計算。小数第1位まで表記
^ 出典での表記は、 $\log g[{\mbox{cgs}}]=4.55$

出典

^ ^a ^b ^c ^d ^e ^f ^g Margaret C. Turnbull (2013年10月). “Properties of Nearby Stars”. NASA Exoplanet Science Institute. 2017年11月23日閲覧。
^ ^a ^b ^c ^d ^e ^f ^g ^h “HD 20367 -- Star”. SIMBAD. ストラスブール天文データセンター. 2017年11月23日閲覧。
^ ^a ^b Santos, N. C.; et al. (2003-01), “Statistical properties of exoplanets. II. Metallicity, orbital parameters, and space velocities”, Astronomy & Astrophysics 398: 363-376, Bibcode: 2003A&A...398..363S, doi:10.1051/0004-6361:20021637
^ ^a ^b ^c Wittenmyer, Robert A.; et al. (2009-05), “A Search for Multi-Planet Systems Using the Hobby-Eberly Telescope”, Astrophysical Journal Supplement 182 (1): 97-119, Bibcode: 2009ApJS..182...97W, doi:10.1088/0067-0049/182/1/97
^ Udry, S.; Mayor, M.; Queloz, D. (2003), “Extrasolar Planets: from Individual Detections to Statistical Properties”, ASP Conference Series 294: 17-26, Bibcode: 2003ASPC..294...17U
^ Stephane Udry. “A 1.1 Jupiter-mass planet orbiting HD 20367”. Geneva Observatory. 2008年10月1日閲覧。

外部リンク

ウィキメディア・コモンズには、HD 20367に関連するカテゴリがあります。

HD 20367 Arietis by Jim Kaler
“Planet HD 20367 b”. Extrasolar Planets Encyclopaedia. 2023年12月22日閲覧。
“HD 20367”. Stars with exoplanets. 2010年4月13日閲覧。
HIP 15323 ヒッパルコス星表（VizieR）
Image HD 20367
title=Sky map アーカイブ 2012年2月13日 - ウェイバックマシン
HD 20367 - EXOKyoto

座標: 03^h 17^m 40.0469^s, +31° 07′ 37.361″

Read other articles:

Tramezaïgues

Commune in Occitania, FranceTramezaïguesCommuneTramezaïgues village seen from the Cap de Laubère, at 2200 meters Coat of armsLocation of Tramezaïgues TramezaïguesShow map of FranceTramezaïguesShow map of OccitanieCoordinates: 42°47′53″N 0°17′24″E / 42.7981°N 0.29°E / 42.7981; 0.29CountryFranceRegionOccitaniaDepartmentHautes-PyrénéesArrondissementBagnères-de-BigorreCantonNeste, Aure et LouronGovernment • Mayor (2020–2026) Didier Fo...

Johann Bengel

Johann Albrecht Bengel Johann Albrecht Bengel adalah salah satu tokoh cendekiawan Alkitab dari Jerman yang tekun mempelajari naskah Perjanjian Baru.[1] Bengel juga seorang pastor di gereja Lutheran.[1] Sejak usianya masih muda, ia merasa sangat terganggu ketika menemukan banyaknya perbedaan dalam manuskrip-manuskrip Perjanjian Baru. Ia kemudian berusaha mempelajari apa bentuk asli dari suatu kata yang dinilai meragukan.[1] Ia lalu sampai pada kesimpulan bahwa bagian ya...

Sesus Pusdikif

Sekolah Khusus Marinir Pusat Pendidikan Infanteri(Kodikmar)Dibentuk25 September 1965NegaraIndonesiaCabang TNI Angkatan LautTipe unitPendidikan Pasukan KhususBagian dariPusdikif KodikmarJulukanSesus PusdikifMotoTri Wira YudhaUlang tahun25 SeptemberSitus webwww.kobangdikal.mil.id Sekolah Khusus Marinir Pusat Pendidikan Infanteri atau (Sesus Pusdikif) adalah lembaga pendidikan di bawah kendali Pusat Pendidikan Infanteri Marinir, Komando Pendidikan Marinir. Sekolah Khusus Marinir merupakan satuan...

Peter A. Selfridge

Peter SelfridgeChief of Protocol of the United StatesIn officeMay 13, 2014 – January 20, 2017PresidentBarack ObamaPreceded byNatalie Jones (Acting)Succeeded bySean Lawler Personal detailsBorn1971 (age 52–53)[1]Alma materUniversity of IowaJohns Hopkins University Peter A. Selfridge (born 1971)[1] is a former U.S. public servant who served as the United States Chief of Protocol from 2014 to 2017. In this role, he served as the link between the White House a...

Siantar Estate, Siantar, Simalungun

Siantar EstateNagoriKantor Pangulu Nagori Siantar EstateNegara IndonesiaProvinsiSumatera UtaraKabupatenSimalungunKecamatanSiantarLuas1.7 km²Jumlah penduduk4280 jiwaKepadatan3.9 jiwa/km² Siantar Estate adalah sebuah nagori yang berada di wilayah Kecamatan Siantar, Kabupaten Simalungun, Provinsi Sumatera Utara, Indonesia. Galeri Gapura selamat datang di Nagori Siantar Estate lbsKecamatan Siantar, Kabupaten Simalungun, Sumatera UtaraNagori Dolok Hataran Dolok Marlawan Karang Bangun Laras ...

Saab 91 Safir

Saab 91 Safir (Swedia: sapphire) adalah pesawat latih sayap rendah (low wing) bermesin tunggal dengan tiga tempat duduk (91A, B, B-2) atau empat tempat duduk (91C, D). Safir ini dibangun oleh Saab AB di Linköping, Swedia, (203 pesawat) dan oleh De Schelde di Dordrecht, Belanda (120 pesawat). Spesifikasi (91A) Karakteristik umum Kru: 1 Kapasitas: 2 penumpang Panjang: 7.80 m (25 ft 7 in) Lebar sayap: 10.60 m (34 ft 9 in) Tinggi: 2.20 m (7 ft 3 in) Area sayap: 13,6 m² (146 sq f...

العلاقات الأوغندية الفرنسية

العلاقات الأوغندية الفرنسية أوغندا فرنسا أوغندا فرنسا تعديل مصدري - تعديل العلاقات الأوغندية الفرنسية هي العلاقات الثنائية التي تجمع بين أوغندا وفرنسا.[1][2][3][4][5] مقارنة بين البلدين هذه مقارنة عامة ومرجعية للدولتين: وجه المقارنة أوغن�...

Dominique Gillot

Si ce bandeau n'est plus pertinent, retirez-le. Cliquez ici pour en savoir plus. Cet article ne cite pas suffisamment ses sources (décembre 2021). Si vous disposez d'ouvrages ou d'articles de référence ou si vous connaissez des sites web de qualité traitant du thème abordé ici, merci de compléter l'article en donnant les références utiles à sa vérifiabilité et en les liant à la section « Notes et références ». En pratique : Quelles sources sont attendues ?...

Basilika Bunda Maria Penolong Umat Kristiani, Niterói

Basilika Bunda Maria Penolong Umat KristianiBasilika Minor Bunda Maria Penolong Umat KristianiPortugis: Basílica Nossa Senhora AuxiliadoraBasilika Bunda Maria Penolong Umat KristianiLokasiNiteróiNegara BrasilDenominasiGereja Katolik RomaArsitekturStatusBasilika minorStatus fungsionalAktif Basilika Bunda Maria Penolong Umat Kristiani (Portugis: Basílica Nossa Senhora Auxiliadora) adalah sebuah gereja basilika minor Katolik yang terletak di Niterói, Brasil. Basilika ini ditetap...

The Times

Disambiguazione – Se stai cercando altri significati, vedi The Times (disambigua). The TimesLogoStato Regno Unito Linguainglese Periodicitàquotidiano Generestampa nazionale Formatocompact FondatoreJohn Walter Fondazione1785 SedeLondra EditoreTimes Newspapers Ltd Diffusione cartacea393 000 (2013) DirettoreJohn Witherow ISSN0140-0460 (WC · ACNP), 0956-1382 (WC · ACNP) e 1363-7746 (WC · ACNP) Sito webthetimes.co.uk Modifica dati su Wikidata · Manuale The T...

Template talk:Belgium-railstation-stub

Belgium Template‑class Belgium portalThis template is within the scope of WikiProject Belgium, a collaborative effort to improve the coverage of Belgium on Wikipedia. If you would like to participate, please visit the project page, where you can join the discussion and see a list of open tasks.BelgiumWikipedia:WikiProject BelgiumTemplate:WikiProject BelgiumBelgium-related articlesTemplateThis template does not require a rating on Wikipedia's content assessment scale. Stub sorting This templ...

Данио-рерио

Данио-рерио Научная классификация Домен:ЭукариотыЦарство:ЖивотныеПодцарство:ЭуметазоиБез ранга:Двусторонне-симметричныеБез ранга:ВторичноротыеТип:ХордовыеПодтип:ПозвоночныеИнфратип:ЧелюстноротыеГруппа:Костные рыбыКласс:Лучепёрые рыбыПодкласс:Новопёрые рыбыИн�...

Norgesmesterskapet 1951

Norgesmesterskapet 1951NM menn 1951 Competizione Coppa di Norvegia Sport Calcio Edizione 46ª Organizzatore NFF Luogo Norvegia Risultati Vincitore Sarpsborg(6º titolo) Secondo Asker Cronologia della competizione 1950 1952 Manuale La Norgesmesterskapet 1951 di calcio fu la 46ª edizione del torneo. La squadra vincitrice fu il Sarpsborg, che vinse la finale contro l'Asker con il punteggio di 3-2. Indice 1 Risultati 1.1 Terzo turno 1.1.1 Ripetizione 1.2 Quarto turno 1.2.1 Rip...

Decision (novel)

1983 novel by Allen Drury Decision US first editionAuthorAllen DruryCountryUnited StatesLanguageEnglishGenrePolitical novelPublisherDoubledayPublication dateAugust 1983Media typePrint (hardcover & paperback)Pages486ISBN0-385-18832-3 Decision is a 1983 political novel by Allen Drury which follows a newly appointed Supreme Court Justice as he is faced with the most difficult decision of his life. It is a standalone work set in a different fictional timeline from Drury's 1959 novel Advi...

Paris Centre

Lokasi Paris Centre Balai Kota Paris Centre (bekas gedung balai kota Arondisemen ke-3 Paris) Paris Centre adalah sebuah wilayah administratif dari kota Paris yang meliputi wilayah arondisemen ke-1, ke-2, ke-3 dan ke-4 yang berlokasi di pusat kota Paris. Referensi lbsArondisemen kota di ParisArondisemen(quarter) Paris Centre Arondisemen ke-1 Saint-Germain-l'Auxerrois Halles Palais-Royal Place-Vendôme Arondisemen ke-2 Gaillon Vivienne Mail Bonne-Nouvelle Arondisemen ke-3 Arts-et-Métiers Enfan...

Feminism in Pakistan

History of the feminist movement in Pakistan 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: Feminism in Pakistan – news · newspapers · books · scholar · JSTOR (February 2018) (Learn how and when to remove this message)Part of a series onFeminism History Feminist history History of feminism Women's history A...

Postage stamps and postal history of Curaçao

This article is about the postal area comprising the island Curaçao. For the postal area before 1950, see Postage stamps and postal history of the Netherlands Antilles. The first stamp issued after the dissolution of the Netherlands Antilles Curaçao, a country within the Kingdom of the Netherlands started issuing postal stamps after the dissolution of the Netherlands Antilles on 10 October 2010.[1] The island forms one of the five postage regions in the Kingdom. The first stamp iss...

7th National Congress of the Lao People's Revolutionary Party

7th National Congress of the Lao People's Revolutionary PartyDate12–14 March 2001 (3 days)Participants452 delegates[1]OutcomeThe election of the 7th Central Committee The 7th National Congress of the Lao People's Revolutionary Party (LPRP) was held in Vientiane from 12 to 14 March 2001. The congress occurs once every five years. A total of 452 delegates represented the party's nearly 100,000 card-carrying members.[1] References ^ a b ໜັງສືພິມ ປະຊາຊ�...

Directorial system

Socio-political system with shared executive power Part of the Politics seriesPolitics Outline Index Category Primary topics Outline of political science Index of politics articles Politics by country Politics by subdivision Political economy Political history Political history of the world Political philosophy Political systems Anarchy City-state Collective leadership Confessional system Democracy Dictatorship Directorial Federacy Feudalism Hybrid regime Meritocracy Monarchy Parliamentary Pr...

Louis Desaix

French general (1768–1800) Louis DesaixPosthumous portrait by Andrea Appiani, 1800, made after Desaix's death mask and commissioned by René Savary, his aide-de-campBorn17 August 1768 (1768-08-17)Ayat-sur-Sioule, Kingdom of FranceDied14 June 1800 (1800-06-15) (aged 31)Spinetta Marengo, ItalyAllegiance Kingdom of France Kingdom of the French French First RepublicService/branchArmyYears of service1783–1800RankGeneral of DivisionBattles/wars French Revoluti...

PROFILPELAJAR.COM