70 Cancri

70 Cancri
Observationsdata
Epok: J2000.0
StjärnbildKräftan
Rektascension09t 04m 09,86704s[1]
Deklination+27° 53′ 53,9089″[1]
Skenbar magnitud ()+6,665 (V)[2]
Stjärntyp
SpektraltypA1 V[3]
U–B+0,05[4]
B–V+0,00[4]
Astrometri
Radialhastighet ()-21,0 ± 4,4[5] km/s
Egenrörelse (µ)RA: -1,287[1] mas/år
Dek.: -1,429[1] mas/år
Parallax ()5,6109 ± 0,1390[1]
Avstånd580 ± 10  (178 ± 4 pc)
Absolut magnitud ()0,24[6]
Detaljer
Radie2,7[7] R
Luminositet75,57[6] L
Temperatur8 887+352-376[1] K
Andra beteckningar
70 Cnc, AG+28 967, BD+28 1683, GSC 01956-01858, HD 77557, HIC 44512, HIP 44512, HR 3601, 2MASS J09040986+2753539, PPM 99281, SAO 80609, TD1 13461, TYC 1956-1858-1, uvby98 100077557, Gaia DR2 692366599475454592, Gaia DR1 692366595179319808 [8]

70 Cancri, som är stjärnans Flamsteed-beteckning, är en ensam stjärna, belägen i den norra delen av stjärnbilden Kräftan. Den har en skenbar magnitud av ca 6,67[2] och kräver åtminstone en handkikare för att kunna observeras. Baserat på parallax enligt Gaia Data Release 2 på ca 5,6[1] mas, beräknas den befinna sig på ett avstånd på ca 580 ljusår (ca 178 parsek) från solen. Den rör sig närmare solen med en heliocentrisk radialhastighet på ca -21 km/s[6] och förväntas komma inom 44 ljusår från solen om ca 9 miljoner år.[6]

Egenskaper

70 Cancri är en vit till blå stjärna i huvudserien av spektralklass A1 V.[2] Den har en radie som är ca 2,7[7] solradier och utsänder från dess fotosfär ca 76[6] gånger mera energi än solen vid en effektiv temperatur av ca 8 900[1] K.

Referenser

Den här artikeln är helt eller delvis baserad på material från engelskspråkiga Wikipedia, 70 Cancri, 27 mars 2020.

Noter

  1. ^ [a b c d e f g h] Brown, A. G. A.; et al. (Gaia collaboration) (August 2018). "Gaia Data Release 2: Summary of the contents and survey properties". Astronomy & Astrophysics. 616. A1. arXiv:1804.09365. Bibcode:2018A&A...616A...1G. doi:10.1051/0004-6361/201833051. Gaia DR2 record for this source at VizieR.
  2. ^ [a b c] Høg, E.; et al. (2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H.
  3. ^ Cowley, A.; Cowley, C.; Jaschek, M.; Jaschek, C. (1969). "A study of the bright A stars. I. A catalogue of spectral classifications". Astronomical Journal. 74: 375–406. Bibcode:1969AJ.....74..375C. doi:10.1086/110819.
  4. ^ [a b] Osawa, Kiyoteru (1959). "Spectral Classification of 533 B8-A2 Stars and the Mean Absolute Magnitude of A0 V Stars". Astrophysical Journal. 130: 159. Bibcode:1959ApJ...130..159O. doi:10.1086/146706.
  5. ^ Gontcharov, G. A. (2006). "Pulkovo Compilation of Radial Velocities for 35 495 Hipparcos stars in a common system". Astronomy Letters. 32 (11): 759–771. arXiv:1606.08053. Bibcode:2006AstL...32..759G. doi:10.1134/S1063773706110065.
  6. ^ [a b c d e] Anderson, E.; Francis, Ch. (2012), "XHIP: An extended hipparcos compilation", Astronomy Letters, 38 (5): 331, arXiv:1108.4971, Bibcode:2012AstL...38..331A, doi:10.1134/S1063773712050015.
  7. ^ [a b] Pasinetti Fracassini, L. E.; et al. (2001). "Catalogue of Apparent Diameters and Absolute Radii of Stars (CADARS) - Third edition - Comments and statistics". Astronomy & Astrophysics. 367: 521–24. arXiv:astro-ph/0012289. Bibcode:2001A&A...367..521P. doi:10.1051/0004-6361:20000451.
  8. ^ "70 Cnc". SIMBAD. Centre de données astronomiques de Strasbourg. Hämtad 2020-03-27.

Externa länkar

Read other articles:

Битівський повіт Powiat bytowski Повіт на мапі воєводства Герб Прапор Країна  Польща Воєводство Поморське Адміністративний центр Битів Населення: 75 527 (2008[1]) Площа: 2192,06 Густота: 34 Урбанізація: 37,17 % Номери автомобілів: GBY TERYT: 6.22.28.01.00.0 Код ISO: Адмніністративний поділ гмін

某某妻〇〇妻别名〇〇老婆[1]编剧遊川和彥导演猪股隆一、日暮謙、鈴木勇馬主演柴崎幸制作国家/地区 日本语言日語季数1集数10每集长度60分鐘(含廣告)主题曲〈至上的人生〉椎名林檎制作制作人大平太(日语:大平太)、福井宏、太田雅春日本電視台首播 图像制式高解析度電視声音制式立體聲播出国家/地区 日本播出日期2015年1月14日 (2015-01-14)—2015...

جمال لو غراند معلومات شخصية الميلاد 30 يونيو 1994 (29 سنة)  أورنجستاد  الطول 177 سنتيمتر[1]  الجنسية مملكة هولندا  الوزن 70 كيلوغرام[1]  الحياة العملية المهنة سباح  الرياضة السباحة  بلد الرياضة أروبا  تعديل مصدري - تعديل   جمال لو غراند (بالهولندية: Jemal Le...

This list of Ports and harbours in the Democratic Republic of Congo details the ports, harbours around the coast of the Democratic Republic of Congo. This list is incomplete; you can help by adding missing items. (March 2023) List of ports and harbours in the Democratic Republic of Congo Port/Harbour name Province Town name Coordinates UN/Locode Remarks Port of Matadi Kongo Central Matadi 5°59′S 13°27′E / 5.983°S 13.450°E / -5.983; 13.450 (Port of Matad...

Destroyer of the Royal Navy For other ships with the same name, see HMS Beaver. HMS Beaver, probably pre-First World War, in black paint and without a pennant number History United Kingdom NameHMS Beaver BuilderWilliam Denny & Brothers, Dumbarton[2] Yard number934[2] Laid down6 October 1910 Launched6 October 1911[1] CommissionedNovember 1912 FateSold 9 May 1921[1] General characteristics Class and typeAcheron-class destroyer Displacement990 tons Length75...

Comic book series Spider-Man and the X-MenSpider-Man and the X-Men issue 1Publication informationPublisherMarvel ComicsScheduleMonthlyFormatLimited seriesGenreSuperheroPublication dateDecember 2014 – April 2015No. of issues6Main character(s)X-MenSpider-ManCreative teamCreated byElliott KalanWritten byElliott KalanArtist(s)Marco FaillaPenciller(s)Stacy LeeCollected editionsSpider-Man and the X-MenISBN 978-0785197003 Spider-Man and the X-Men is a six-issue superhero limited series writte...

Military unit of the Philippines Navy Philippine Naval Special Operations Command (NAVSOCOM)NAVSOCOM InsigniaActiveNovember 5, 1956 - PresentCountryPhilippinesBranchPhilippine NavyTypeSpecial ForcesRoleSpecial Operations Direct ActionCounterterrorismSpecial ReconnaissanceUnconventional WarfareHostage RescueForeign Internal DefenseCounter-ProliferationCounter Narcotics OperationsHigh Value Target RaidsAirborne OperationsGarrison/HQNaval Base Heracleo Alano (Naval Base Cavite)Nickname(s)SWG, SW...

本條目存在以下問題,請協助改善本條目或在討論頁針對議題發表看法。 需要补充更多来源。 閱讀起來類似評論。 中立性有争议。內容、語調可能帶有明顯的個人觀點或地方色彩。 可能過於冗長。 需要被修正為維基格式以符合质量标准。 英國作家J·K·罗琳在她的畅销书《哈利·波特》系列中列举了数位激发她创作灵感的作者。许多作家、记者及评论家还发现了与此书有相...

2014 film by Phillip Noyce The GiverTheatrical release posterDirected byPhillip NoyceScreenplay by Michael Mitnick Robert B. Weide Based onThe Giverby Lois LowryProduced by Nikki Silver Jeff Bridges Neil Koenigsberg Starring Jeff Bridges Meryl Streep Brenton Thwaites Alexander Skarsgård Katie Holmes Taylor Swift Cameron Monaghan Odeya Rush Emma Tremblay CinematographyRoss EmeryEdited byBarry Alexander BrownMusic byMarco BeltramiProductioncompanyWalden MediaDistributed byThe Weinstein Company...

Artikel ini memerlukan pemutakhiran informasi. Harap perbarui artikel dengan menambahkan informasi terbaru yang tersedia. Neutrino/Antineutrino Penggunaan pertama kali dari ruang gelembung hidrogen untuk mendeteksi neutrino, pada 13 November 1970. Sebuah neutrino menghantam proton dalam atom hidrogen. Tabrakan itu terjadi pada titik di mana tiga jalur berasal di sebelah kanan foto. Komposisi: Partikel dasar Kelompok: Lepton, antilepton Generasi: Pertama, Kedua dan Ketiga Interaksi: Interaksi ...

Perform excretion and maintain osmotic pressure in Platyhelminthes A flame cell is a specialized excretory cell found in the simplest freshwater invertebrates , including flatworms(Platyhelminthes), rotifers and nemerteans; these are the simplest animals to have a dedicated excretory system. Flame cells function like a kidney, removing waste materials. Bundles of flame cells are called protonephridia.[1] The flame cell has a nucleated cell body, with a cup-shaped projection, with flag...

Research chemist Frances Mary Gore MicklethwaitBorn1867Blackwood, Yorkshire, EnglandDied25 March 1950Alma materRoyal college of science, later known as Imperial CollegeAwardsMBE for secret wartime workScientific careerFieldsWartime research chemist Frances Mary Gore Micklethwait (1867– 25 March 1950),[1] was an English research chemist, among the first to study and seek an antidote to mustard gas during the First World War. She received an MBE for her top secret wartime work,&#...

For the Jumilla wine region, see Jumilla (DO). Municipality in Region of Murcia, SpainJumillaMunicipality SealLocation of JumillaCoordinates: 38°28′45″N 1°19′30″W / 38.47917°N 1.32500°W / 38.47917; -1.32500CountrySpainA. communityRegion of MurciaProvinceMurciaComarcaAltiplano murcianoJudicial districtJumillaGovernment • MayorFrancisco Abellán MartínezArea • Total972 km2 (375 sq mi)Elevation510 m (1,670 ft)P...

البطولة العربية لألعاب القوى 1997 المدينة المضيفة الطائف، السعودية ودمشق، سوريا التاريخ 10–12 سبتمبر 1997 و25–27 يونيو 1998 الرياضة ألعاب القوى  الفعاليات 42 1995 القاهرة 1999 بيروت تعديل مصدري - تعديل   البطولة العربية لألعاب القوى 1997 كانت النسخة العاشرة من البطولة العربية لألعا...

Dieser Artikel bedarf einer grundsätzlichen Überarbeitung: Weite Teile des Artikels bestehen aus Zitaten aus zeitgenössischen Quellen verschiedenster Art, ohne Belege, ohne vernünftige Formatierung, zum Teil kaum als solche erkennbar. Weiters ist die Abschnittseinteilung teilweise kaum nachvollziehbar. Mehrere Abschnitte müssen außerdem deutlich ausgebaut werden, um überhaupt ihre Relevanz klarzumachen. Bitte hilf mit, ihn zu verbessern, und entferne anschließend diese Markierung....

Variety of grape DoradilloGrape (Vitis)Color of berry skinBlancSpeciesVitis viniferaAlso calledBlanquette of South AustraliaOriginSpainNotable regionsRiverland Doradillo is a white wine grape grown primarily in the Riverland region of South Australia.[1] It originates from Spain, and is also known as Blanquette of South Australia.[2] Doradillo is also used as a synonym for the grape varieties Jaén Blanco[3] and Doradilla,[4] but Doradilla is also a distinct va...

Peta pembagian administratif tingkat pertama Republik Irlandia Pembagian administratif Republik Irlandia terdiri atas 31 pemerintah daerah (county atau kota) pada tingkat pertama dan daerah pemilihan lokal (local electoral area/LEA) pada tingkat kedua. lbsPembagian administratif EropaNegaraberdaulat Albania Andorra Armenia1 Austria Azerbaijan1 Belanda Belarus Belgia Bosnia dan Herzegovina Britania Raya Inggris Irlandia Utara Skotlandia Wales Bulgaria Ceko Denmark Estonia Finlandia Georgia1 Hu...

Antonius Felix, Promptuarii Iconum Insigniorum, oleh Guillaume Rouillé Mata uang perunggu dicetak oleh Antonius Felix.Depan: huruf Yunani NEP WNO C (Nero) dengan mahkota daun.Belakang: Huruf Yunani KAICAPOC (Kaisar) dan tahun LC (tahun 3 = 56/57 M), simbol cabang palem. Markus Antonius Feliks (Marcus Antonius Felix atau Felix dalam bahasa Yunani: ο Φηλιξ) lahir 5/10 M adalah seorang wali negeri (prokurator) Kekaisaran Romawi untuk Provinsi Iudaea pada tahun 52-58 M, menggantikan Ventid...

2011 party video game published by Nintendo 2011 video gameWii Play: MotionNorth American box bundle, featuring a black Wii Remote Plus controllerDeveloper(s) Various Arzest Chunsoft Good-Feel Mitchell Corporation NDcube Nintendo Prope Skip Ltd. Vanpool Publisher(s)NintendoDirector(s) Various Naoto Ohshima (Arzest)Yutaka Sugano (Arzest)Atsushi Nakao (CAProduction)Yuichi Mizobe (Chunsoft)Kazuhiko Ogawa (Chunsoft)Kentaro Sei (Good-Feel)Hirosato Funaki (Mitchell)Satoru Tsujita (Mitchell)Takehiko...

Short story by Mike ResnickKirinyagaShort story by Mike ResnickCountryUnited StatesLanguageEnglishGenre(s)Science fictionPublicationPublished inThe Magazine of Fantasy & Science FictionPublication typeMagazinePublication dateNovember 1988 Kirinyaga is a science fiction short story by American writer Mike Resnick, published in 1988; it is the first chapter in the book by the same name. The story was the winner of the 1989 Hugo Award for Best Short Story[1] and the 1989 SF Chron...