Share to: share facebook share twitter share wa share telegram print page

Winnecke 4

Winnecke 4

Winnecke 4 double star
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Ursa Major
A
Right ascension 12h 22m 12.5272s[1]
Declination +58° 4′ 58.549″[1]
Apparent magnitude (V) 9.64[2]
B
Right ascension 12h 22m 18.9992s[3]
Declination +58° 5′ 10.366″[3]
Apparent magnitude (V) 10.11[2]
Characteristics
A
Spectral type K0 III[4]
B
Spectral type G0 V[4]
Astrometry
A
Parallax (π)3.2191 ± 0.0118 mas[1]
Distance1,013 ± 4 ly
(311 ± 1 pc)
Absolute magnitude (MV)+0.88[4]
B
Parallax (π)6.9328 ± 0.0155 mas[3]
Distance470 ± 1 ly
(144.2 ± 0.3 pc)
Absolute magnitude (MV)+4.0[4]
Details
A
Mass1.15[5] M☉
Radius4.48[6] R☉
Luminosity13[6] L☉
Surface gravity (log g)3.16[5] cgs
Temperature4,957[5] K
Metallicity [Fe/H]−0.164[7] dex
Age4.1[7] Gyr
B
Mass1.00[5] M☉
Radius1.1[8] R☉
Luminosity1.56[8] L☉
Surface gravity (log g)4.36[5] cgs
Temperature6,146[5] K
Metallicity [Fe/H]−0.26[5] dex
Other designations
M40, WNC 4, BD+56 1372, CCDM 12223+5805, WDS J12222+5805
A: HD 238107, SAO 28353
B: HD 238108, SAO 28355
Database references
SIMBADdata
A
B

Winnecke 4 (also known as Messier 40 or WNC 4) is an optical double star consisting of two unrelated stars in a northerly zone of the sky, Ursa Major.

The pair were discovered by Charles Messier in 1764 while he was searching for a nebula that had been reported in the area by Johannes Hevelius. Not seeing any nebulae, Messier catalogued this apparent pair instead. The pair were rediscovered by Friedrich August Theodor Winnecke in 1863, and included in the Winnecke Catalogue of Double Stars as number 4. Burnham calls M40 "one of the few real mistakes in the Messier catalog," faulting Messier for including it when all he saw was a double star, not a nebula of any sort.[9]

In 1991 the separation between the components was measured at 51.7″, an increase since 1764. Data gathered by astronomers Brian Skiff (2001) and Richard L. Nugent (2002) strongly suggested the subject was merely an optical double star rather than a physically connected (binary) system.[4] The A star that seems the brighter is over twice as far as B.[10] Parallax measurements from the Gaia satellite show the two stars, HD 238107 and HD 238108, are at distances of 311 ± 1 parsec (1,013 ± 4 light-years) and 144.2 ± 0.3 parsecs (470 ± 1 light-year) respectively. HD 238108 is itself a genuine binary star, with an 18th magnitude white dwarf companion 5 arcseconds away and a parallax distance of 146.8 ± 2.3 parsecs (479 ± 8 light-years).[citation needed]

See also

References

  1. ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  2. ^ a b Høg, E.; Fabricius, C.; Makarov, V. V.; Urban, S.; Corbin, T.; Wycoff, G.; Bastian, U.; Schwekendiek, P.; Wicenec, A. (March 2000). "The Tycho-2 catalogue of the 2.5 million brightest stars". Astronomy and Astrophysics. 355: L27–L30. Bibcode:2000A&A...355L..27H. ISSN 0004-6361.
  3. ^ a b c Brown, A. G. A.; et al. (Gaia collaboration) (2021). "Gaia Early Data Release 3: Summary of the contents and survey properties". Astronomy & Astrophysics. 649: A1. arXiv:2012.01533. Bibcode:2021A&A...649A...1G. doi:10.1051/0004-6361/202039657. S2CID 227254300. (Erratum: doi:10.1051/0004-6361/202039657e). Gaia EDR3 record for this source at VizieR.
  4. ^ a b c d e Nugent, Richard L (2002). "The Nature of the Double Star M40". Journal of the Royal Astronomical Society of Canada. 96: 63. Bibcode:2002JRASC..96...63N.
  5. ^ a b c d e f g Anders, F.; Khalatyan, A.; Chiappini, C.; Queiroz, A. B.; Santiago, B. X.; Jordi, C.; Girardi, L.; Brown, A. G. A.; Matijevič, G.; Monari, G.; Cantat-Gaudin, T.; Weiler, M.; Khan, S.; Miglio, A.; Carrillo, I.; Romero-Gómez, M.; Minchev, I.; de Jong, R. S.; Antoja, T.; Ramos, P.; Steinmetz, M.; Enke, H. (August 2019). "Photo-astrometric distances, extinctions, and astrophysical parameters for Gaia DR2 stars brighter than G = 18". Astronomy & Astrophysics. 628: A94. arXiv:1904.11302. Bibcode:2019A&A...628A..94A. doi:10.1051/0004-6361/201935765. ISSN 0004-6361.
  6. ^ a b 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.
  7. ^ a b Sit, Tawny; Ness, M. K. (2020). "The Age Distribution of Stars in the Milky Way Bulge". The Astrophysical Journal. 900 (1): 4. arXiv:2006.01158. Bibcode:2020ApJ...900....4S. doi:10.3847/1538-4357/ab9ff6. S2CID 219179385.
  8. ^ a b Stassun, Keivan G.; et al. (2019-10-01). "The Revised TESS Input Catalog and Candidate Target List". The Astronomical Journal. 158 (4): 138. arXiv:1905.10694. Bibcode:2019AJ....158..138S. doi:10.3847/1538-3881/ab3467. hdl:1721.1/124721. ISSN 0004-6256. S2CID 166227927.
  9. ^ Robert Burnham (1978). Burnham's Celestial Handbook: An Observer's Guide to the Universe Beyond the Solar System. Courier Corporation. p. 1982. ISBN 978-0-486-23673-5.
  10. ^ Merrifield, M. R; Gray, M. E; Haran, B (2017). "Gaia Shows that Messier 40 is Definitely Not a Binary Star". The Observatory. 137: 23. arXiv:1612.00834. Bibcode:2017Obs...137...23M.

Read other articles:

Ільїн Володимир Георгійович

Ільїн Володимир ГеоргійовичНародився 23 травня 1939(1939-05-23)Чернігів, Українська РСР, СРСРПомер 20 січня 2016(2016-01-20) (76 років)Київ, УкраїнаКраїна  СРСР УкраїнаДіяльність фізик, хімік, поет, перекладачAlma mater НТУУ КПІ ім. Ігоря СікорськогоНауковий ступінь доктор хімічн�...

 

佐賀清和中学校・高等学校

佐賀清和中学校・高等学校 北緯33度16分15.6秒 東経130度18分36.1秒 / 北緯33.271000度 東経130.310028度 / 33.271000; 130.310028座標: 北緯33度16分15.6秒 東経130度18分36.1秒 / 北緯33.271000度 東経130.310028度 / 33.271000; 130.310028過去の名称 私立実科女学校清和高等女学校国公私立の別 私立学校設置者 学校法人佐賀清和学園校訓 和顔愛語設立年月日 1911年4月創...

 

Hollywood Road, Brompton

Residential street in London, England Hollywood Road, ChelseaHouses in Hollywood RoadHollywood RoadShow map of Royal Borough of Kensington and ChelseaHollywood RoadShow map of Greater LondonGeneral informationAddressHollywood Road, ChelseaTown or cityLondonCountryEnglandCoordinates51°29′19″N 0°10′52″W / 51.4886°N 0.1810°W / 51.4886; -0.1810Completed1865-1868 Hollywood Road is a residential street in the Brompton area, London, SW10. It runs roughly north to ...

Charles Ier Frédéric de Montmorency-Luxembourg

Si ce bandeau n'est plus pertinent, retirez-le. Cliquez ici pour en savoir plus. Cet article ou cette section d'article est rédigé entièrement ou presque entièrement à partir d'une seule source (avril 2022). N'hésitez pas à modifier cet article pour améliorer sa vérifiabilité en apportant de nouvelles références dans des notes de bas de page. Pour les articles homonymes, voir Charles de Montmorency. Pour les autres membres de la famille, voir famille Montmorency. Charles Ier ...

 

Raith, Fife

56°06′36″N 3°14′06″W / 56.110°N 3.235°W / 56.110; -3.235 A track on the Raith Estate Raith Tower Raith (Scottish Gaelic: ràth, fort or fortified residence), as an area of Fife, once stretched from the lands of Little Raith (earlier Wester Raith[1]), south of Loch Gelly, as far as Kirkcaldy[2] and the Battle of Raith was once theorised to have been fought here in 596 AD.[3] Raith Hill, west of Auchtertool and immediately to the east ...

 

Kasina Wielka witch trial

1634 witch trial in the Polish-Lithuanian commonwealthMill in Kraków The Kasina Wielka witch trial occurred in 1634 in the small rural village of Prąmnik in Kraków, Poland. Zofia Konstancja and Agnieszka Michałowska were convicted of witchcraft. Konstancia was burned at the stake on 11 August 1634, and Michałowska was burned on 5 September 1634. The two women were accused of using witchcraft against the Pramnik Mill belonging to the Dominican monastery in Kraków, which resulted in damag...

Fundal height

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: Fundal height – news · newspapers · books · scholar · JSTOR (December 2009) (Learn how and when to remove this template message) Illustration of fundal height at various points during pregnancy Fundal height, or McDonald's rule, is a measure of the size of the ...

 

List of active gold mines in Nevada

EmigrantLas VegasMineral RidgeAuroraPumpkin HollowBorealisIsabella PearlManhattan GulchRound MountainDenton-RawhideRobinsonPanRenoRuby HillGold BarBald MountainGoldrushCortez HillsPipelineRelief CanyonRochesterFire CreekPhoenixFlorida CanyonMarigoldCarlinLone TreeHycroftLongCanyonBetze-Post, MeikleArturoHollisterTurquoiseMidasTwinCreeksStarvation CanyonJerritt Canyonclass=notpageimage| Active gold mines in Nevada Gold mining is a major industry in the U.S. State of Nevada. In 2020 mining over...

 

Antony Varghese

Indian film actor Antony VargheseAntony in RDX: Robert Dony XavierBorn11 October 1989 (1989-10-11) (age 34)Angamaly, Kerala, IndiaNationalityIndianAlma materMaharaja's College, ErnakulamOccupationActorYears active2017–presentNotable workAngamaly DiariesSpouse Anisha Poulose ​(m. 2021)​ Antony Varghese, also known by his screen name Pepe[1] is an Indian actor who appears in Malayalam films. He made his debut in 2017 through the film An...

Fred Groves (actor)

British actor Fred GrovesBorn(1880-08-08)8 August 1880London, EnglandDied4 June 1955(1955-06-04) (aged 74)London, EnglandOccupationActorYears active1896–1950 Fred Groves (8 August 1880 – 4 June 1955) was a British actor of the celebrated Groves acting family.[1][2] On stage from 1896, he appeared in the original West End production of Noël Coward's Cavalcade (1931-2); and was a leading man in silent films, latterly becoming a character player in movies.[3 ...

 

Ambasciatore d'Italia negli Stati Uniti d'America

La facciata dell'ambasciata d'Italia negli Stati Uniti d'America, a Washington. L'ambasciatore d'Italia negli Stati Uniti d'America (in inglese Ambassador of Italy to the United States of America) è il capo della missione diplomatica della Repubblica Italiana negli Stati Uniti d'America. Indice 1 Storia 2 Lista degli ambasciatori 3 Altre sedi diplomatiche d'Italia negli Stati Uniti 4 Note 5 Voci correlate 6 Collegamenti esterni Storia Le relazioni diplomatiche tra Italia e Stati Uniti cominc...

 

Romain Ruffenach

Rugby playerRomain RuffenachDate of birth (1994-09-04) 4 September 1994 (age 29)Place of birthTours, FranceHeight1.85 m (6 ft 1 in)Weight100 kg (15 st 10 lb; 220 lb)Rugby union careerPosition(s) HookerCurrent team MontpellierYouth career2010–2012 Stade RochelaisSenior careerYears Team Apps (Points)2012–2016 Biarritz Olympique 67 (35)2016–present Montpellier 10 (0) Correct as of 7 January 2017 Romain Ruffenach (born 4 September 1994)[1]...

SMA Negeri 1 Cawas

SMA Negeri 1 CawasInformasiDidirikan30 Juli 1980JenisNegeriAkreditasiA [1]Nomor Pokok Sekolah Nasional20309684Kepala SekolahArik sulistyorini S.PdJumlah kelas33Jurusan atau peminatanIlmu Pengetahuan Alam dan Ilmu Pengetahuan SosialKurikulumKurikulum 2013Jumlah siswa1024StatusNegeriAlamatLokasiCawas, Kabupaten Klaten, Jawa Tengah, Indonesia 57463Tel./Faks.(0272) 898192Situs web[1]MotoMotoUnggul dan Terampil dalam Prestasi Berdasarkan Imtaq Sekolah Menengah Atas Nege...

 

Victoria (Seychelles)

Cet article est une ébauche concernant les Seychelles. Vous pouvez partager vos connaissances en l’améliorant (comment ?) selon les recommandations des projets correspondants. Consultez la liste des tâches à accomplir en page de discussion. Pour les articles homonymes, voir Victoria et Port Victoria. Victoria Vue aérienne de Victoria. Administration Pays Seychelles Maire David André Démographie Gentilé Victorien [1] Population 24 701 hab. (2014) Densité 1 229...

 

Zay language

Afro-Asiatic language spoken in Ethiopia Zayዛይኘ, የዛይ አፍPronunciation[za:jɲɲǝ], [jǝza:j af]Native toEthiopiaRegionLake ZwayEthnicityZay peopleNative speakers(4,900 cited 1994)[1]Language familyAfro-Asiatic SemiticWest SemiticSouth SemiticEthiopicSouth EthiopicTransversal South EthiopicHarari–East GurageEast GurageZayWriting systemGeʽez scriptLanguage codesISO 639-3zwaGlottologzayy1238ELPZayZay is classified as Severely Endangered by the UNESCO Atlas of the W...

2023–24 UEFA Women's Nations League

2023–2024 edition of the UEFA Women's Nations League 2023–24 UEFA Women's Nations LeagueTournament detailsDatesLeague phase:22 September – 5 December 2023Nations League Finals andpromotion/relegation matches21–28 February 2024Teams51Tournament statisticsMatches played150Goals scored424 (2.83 per match)Attendance693,603 (4,624 per match)Top scorer(s) Sharon Beck(9 goals)2025–26 → All statistics correct as of 5 December 2023.International football competition The ...

 

Move This

1992 single by TechnotronicMove ThisSingle by Technotronicfrom the album The Greatest Hits Released1992GenreEurodance, hip houseLength5:19 (album version - cold end)5:02 (album version - fade)3:45 (Bogaert’s 7” remix)3:40 (hit mix)LabelARS Entertainment BelgiumSBK Records (US)Songwriter(s)Manuela Kamosi, Jo BogaertTechnotronic singles chronology Money Makes the World Go Round (1991) Move This (1992) Hey Yoh, Here We Go (1993) Music videoMove This on YouTube Move This is a song by Belgian ...

 

Álvaro III of Kongo

Mwene Kongo Álvaro IIIMwene KongoÁlvaro III of KongoReignAugust 1615 to 4 May 1622PredecessorBernardo IISuccessorPedro IIDynastyKwilu dynastyFatherÁlvaro II Álvaro III Nimi a Mpanzu, also known as Álvaro III Mbiki a Mpanzu, ruled as king or manikongo of the Kingdom of Kongo from August 1615 to 4 May 1622. Prior to becoming king, he had served as Duke of Mbamba.[1] Like his predecessor, Bernardo II he was a son of King Álvaro II.[1] King Álvaro III was the fourth ruler f...

Sunshine of Your Love (album)

1969 live album by Ella FitzgeraldSunshine of Your LoveLive album by Ella FitzgeraldReleased1969RecordedOctober 1968GenreJazzLength45:33LabelMPSProducerNorman GranzElla Fitzgerald chronology Misty Blue(1968) Sunshine of Your Love(1969) Ella(1969) Alternative CD cover Professional ratingsReview scoresSourceRatingAllmusic[1] Sunshine of Your Love is a 1969 live album by Ella Fitzgerald. Recorded at the Venetian Room, The Fairmont San Francisco, in October 1968. The main body of ...

 

Rockeskyll

Municipality in Rhineland-Palatinate, GermanyRockeskyll Municipality Coat of armsLocation of Rockeskyll within Vulkaneifel district Rockeskyll Show map of GermanyRockeskyll Show map of Rhineland-PalatinateCoordinates: 50°15′19″N 6°41′54″E / 50.25528°N 6.69833°E / 50.25528; 6.69833CountryGermanyStateRhineland-PalatinateDistrictVulkaneifel Municipal assoc.GerolsteinGovernment • Mayor (2019–24) Marcel Ballmann[1]Area • Tot...

 
Kembali kehalaman sebelumnya