HD 186756

HD 186756
Location of HD 186756 (circled)
Observation data
Epoch J2000.0      Equinox J2000.0 (ICRS)
Constellation Telescopium
Right ascension 19h 48m 55.08814s[1]
Declination −52° 53′ 17.1953″[1]
Apparent magnitude (V) 6.25[2]
Characteristics
Spectral type K1 III[3]
U−B color index +1.12[2]
B−V color index +1.13[2]
Astrometry
Radial velocity (Rv)−21.2±0.4[4] km/s
Proper motion (μ) RA: +14.802 mas/yr[1]
Dec.: −48.522 mas/yr[1]
Parallax (π)4.3872 ± 0.0275 mas[1]
Distance743 ± 5 ly
(228 ± 1 pc)
Absolute magnitude (MV)−0.96[5]
Details
Mass1.23[6] M☉
Radius21.01±1.07[7] R☉
Luminosity177±2[8] L☉
Surface gravity (log g)1.83[6] cgs
Temperature4,747±122[9] K
Metallicity [Fe/H]−0.13[6] dex
Rotational velocity (v sin i)<1[10] km/s
Other designations
68 G. Telescopii[11], CD−53°8294, CPD−53°9678, FK5 3581, GC 27384, HD 186756, HIP 97491, HR 7521, SAO 246277[12]
Database references
SIMBADdata

HD 186756, also known as HR 7521 or rarely 68 G. Telescopii, is a solitary orange hued star located in the southern constellation Telescopium. It has an apparent magnitude of 6.25,[2] placing it near the limit for naked eye visibility, even under ideal conditions. Gaia DR3 parallax measurements imply a distance of 743 light years;[1] it is currently approaching with a heliocentric radial velocity of −21.2 km/s.[4] At its current distance, HD 186756's brightness is diminished by 0.34 magnitudes due to extinction from interstellar dust[13] and it has an absolute magnitude of −0.96.[5]

This is an evolved red giant star with a stellar classification of K1 III. It has 123% the mass of the Sun[6] but it has expanded to 21.01 times the radius of the Sun.[7] The object radiates 177 times the luminosity of the Sun[8] from its enlarged photosphere at an effective temperature of 4,747 K.[9] HD 186756 is slightly metal deficient with an iron abundance of [Fe/H] = −0.13 (74% solar) and it spins too slowly for its projected rotational velocity to be measured accurately.[10]

References

  1. ^ a b c d e Vallenari, A.; et al. (Gaia collaboration) (2023). "Gaia Data Release 3. Summary of the content and survey properties". Astronomy and Astrophysics. 674: A1. arXiv:2208.00211. Bibcode:2023A&A...674A...1G. doi:10.1051/0004-6361/202243940. S2CID 244398875. Gaia DR3 record for this source at VizieR.
  2. ^ a b c d Oja, T. (1970). "UBV-Fotometri danska Tel (ESO)". Private Communication: 0. Bibcode:1970Priv.........0O.
  3. ^ Houk, Nancy (1978). Michigan catalogue of two-dimensional spectral types for the HD stars: Declinations −53° to −40°. Vol. 2. Bibcode:1978mcts.book.....H.
  4. ^ a b Gontcharov, G. A. (November 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. eISSN 1562-6873. ISSN 1063-7737. S2CID 119231169.
  5. ^ a b Anderson, E.; Francis, Ch. (May 2012). "XHIP: An extended hipparcos compilation". Astronomy Letters. 38 (5): 331–346. arXiv:1108.4971. Bibcode:2012AstL...38..331A. doi:10.1134/S1063773712050015. eISSN 1562-6873. ISSN 1063-7737. S2CID 119257644.
  6. ^ a b c d Anders, F.; et al. (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. eISSN 1432-0746. ISSN 0004-6361. S2CID 131780028.
  7. ^ a b Kervella, P.; Thévenin, F.; Di Folco, E.; Ségransan, D. (October 2004). "The angular sizes of dwarf stars and subgiants. Surface brightness relations calibrated by interferometry". Astronomy & Astrophysics. 426 (1): 297–307. arXiv:astro-ph/0404180. Bibcode:2004A&A...426..297K. doi:10.1051/0004-6361:20035930. eISSN 1432-0746. ISSN 0004-6361. S2CID 6077801.
  8. ^ 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.
  9. ^ a b Stassun, Keivan G.; et al. (9 September 2019). "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. eISSN 1538-3881. hdl:1721.1/124721. S2CID 166227927.
  10. ^ a b De Medeiros, J. R.; Alves, S.; Udry, S.; Andersen, J.; Nordström, B.; Mayor, M. (January 2014). "A catalog of rotational and radial velocities for evolved stars V: Southern stars *". Astronomy & Astrophysics. 561: A126. arXiv:1312.3474. Bibcode:2014A&A...561A.126D. doi:10.1051/0004-6361/201220762. eISSN 1432-0746. ISSN 0004-6361. S2CID 54046583.
  11. ^ Gould, Benjamin Apthorp (1878). "Uranometria Argentina : brillantez y posicion de las estrellas fijas, hasta la septima magnitud, comprendidas dentro de cien grados del polo austral : con atlas". Resultados del Observatorio Nacional Argentino. 1. Bibcode:1879RNAO....1.....G.
  12. ^ "HD 186756". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved April 20, 2023.
  13. ^ Gontcharov, George A.; Mosenkov, Aleksandr V. (28 September 2017). "Verifying reddening and extinction for Gaia DR1 TGAS main sequence stars". Monthly Notices of the Royal Astronomical Society. 472 (4): 3805–3820. arXiv:1709.01160. Bibcode:2017MNRAS.472.3805G. doi:10.1093/mnras/stx2219. eISSN 1365-2966. ISSN 0035-8711. S2CID 118879856.

Read other articles:

Ousmane Viera

Ousmane Viera Viera berseragam Çaykur Rizespor pada tahun 2013Informasi pribadiNama lengkap Ousmane Viera DiarrassoubaTanggal lahir 21 Desember 1986 (umur 37)Tempat lahir Daloa, Pantai GadingTinggi 1,86 m (6 ft 1 in)Posisi bermain BekInformasi klubKlub saat ini Çaykur RizesporNomor 3Karier senior*Tahun Tim Tampil (Gol)2003–2008 RC Daloa 83 (3)2008–2010 CFR Cluj 12 (0)2009–2010 → Internațional (pinjaman) 30 (0)2010–2013 Pandurii Târgu Jiu 91 (7)2013– Çayku...

 

Gare d'Amiens

Stasiun d'Amiens Gare du Nord atau Gare d'Amiens merupakan stasiun kereta api utama untuk kota Amiens di Prancis Utara. Stasiun ini dibuka pada tanggal 15 Maret 1847 ketika jalur menuju Abbeville dibuka. Bangunannya digantikan oleh struktur sekarang setelah pengeboman oleh sekutu dan dibangun lagi pada 1955 oleh Auguste Perret. Sebuah menara disebut Tour Perret dibangun pada waktu yang sama dan dekat dengan stasiun. Nord merupakan sebuah ujung rel dan sebuah perhentian, concourse penumpang di...

 

Liste des sénateurs des États-Unis pour le Missouri

Cet article dresse la liste des membres du Sénat des États-Unis élus de l'État du Missouri depuis son admission dans l'Union le 10 août 1821. Eric Schmitt (R), sénateur depuis 2023. Josh Hawley (R), sénateur depuis 2019. Élections Les deux sénateurs sont élus au suffrage universel direct pour un mandat de six ans. Les prochaines élections auront lieu en novembre 2024 pour le siège de la classe I et en novembre 2022 pour le siège de la classe III. Liste des sénateurs Liste des s...

Associazione Calcio Padova 1922-1923

Voce principale: Calcio Padova. Associazione Calcio PadovaStagione 1922-1923 Sport calcio Squadra Padova Allenatore Herbert Burgess Presidente Michele Maluta Prima Divisione1º posto nel girone C, 3º posto nel girone finale. Miglior marcatoreCampionato: A. Busini (10) StadioStadium 1921-1922 1923-1924 Si invita a seguire il modello di voce Questa pagina raccoglie le informazioni riguardanti l'Associazione Calcio Padova nelle competizioni ufficiali della stagione 1922-1923. Indice 1 Sta...

 

Rauisuchus

Rauisuchus Periode Trias Tengah-Akhir~235–205.6 jtyl PreЄ Є O S D C P T J K Pg N Restorasi R. tiradentesTaksonomiKerajaanAnimaliaFilumChordataKelasReptiliaOrdoRauisuchiaFamiliRauisuchidaeGenusRauisuchus Huene, 1936 Tata namaDinamakan berdasarkanDr. Wilhelm Raulbs Rauisuchus adalah genus archosaurus basal yang hidup di tempat yang sekarang adalah Taman Bumi Paleorrota (Formasi Santa María), Brasil, selama periode Trias Tengah sampai Akhir (235-206 juta tahun yang lalu).[1] Ge...

 

Nowy Meksyk

Nowy MeksykState of New Mexico stan 47. stan od 6 stycznia 1912 Pieczęć Flaga Dewiza: Crescit eundo Państwo  Stany Zjednoczone Stolica Santa Fe Kod ISO 3166-2 US-NM Gubernator Michelle Lujan Grisham (D) Powierzchnia 314 917 km²[1] Populacja (2020)• liczba ludności 2 117 552[2] • gęstość 6,6 os./km² Strefa czasowa UTC-07:00UTC-06:00 Języki urzędowe de iure brak (de facto na równi angielski i hiszpański) Położenie na mapie USA Multimedia w Wikimedia ...

Rostocker FC 1895 (wanita)

Rostocker FC 1895Nama lengkapRostocker Fußballclub von 1895 e. V.StadionSportplatz Damerower WegPresidenReinhard BeumerManajerRobert FölschLigaRegionalliga Nordost Wanita2021–22ke-14, Regionalliga Nordost WanitaSitus webSitus web resmi klub Kostum kandang Kostum tandang Rostocker FC 1895 adalah klub sepak bola wanita Jerman yang berbasis di kota Rostock. Pranala luar Situs web resmi

 

5th Cavalry Regiment

For other uses, see 5th Cavalry. 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: 5th Cavalry Regiment – news · newspapers · books · scholar · JSTOR (December 2012) (Learn how and when to remove this message) 5th Cavalry Regiment5th Cavalry Regiment coat of armsActive1861–CountryUnited States of AmericaBran...

 

Championnats du monde de cyclisme sur route 2022

Championnats du monde de cyclisme sur route 2022 Junior hommesGénéralités Sport Cyclisme sur route Organisateur(s) Union cycliste internationale Édition 89e Lieu(x) Wollongong Date 18 au 25 septembre 2022 Épreuves 13 Navigation Flandre 2021 Glasgow 2023 modifier Les Championnats du monde de cyclisme sur route 2022, quatre-vingt-neuvième édition des championnats du monde de cyclisme sur route, ont lieu du 18 au 25 septembre à Wollongong, en Australie[1],[2]. C'est la deuxième fois qu...

Alessandro Bonesso

Questa voce o sezione sull'argomento calciatori italiani non cita le fonti necessarie o quelle presenti sono insufficienti. Puoi migliorare questa voce aggiungendo citazioni da fonti attendibili secondo le linee guida sull'uso delle fonti. Segui i suggerimenti del progetto di riferimento. Alessandro Bonesso Bonesso al Catania nella stagione 1980-1981 Nazionalità  Italia Altezza 180 cm Peso 79 kg Calcio Ruolo Attaccante Termine carriera 1989 CarrieraGiovanili 1973-1975 Saronno...

 

Australian Survivor

Television series based on the reality show Survivor This article is about the Australian edition of Survivor. For the second season of the American edition set in Australia, see Survivor: The Australian Outback. For the most recent season, see Australian Survivor: Titans V Rebels. Australian SurvivorGenreReality competitionCreated byCharlie ParsonsBased onExpedition Robinson/Survivorby Charlie ParsonsPresented by Lincoln Howes Ian Dicko Dickson Jonathan LaPaglia StarringAustralian Survivor c...

 

Abortion in the District of Columbia

Abortion in the District of Columbia is legal at all stages of pregnancy. In 1971, in United States v. Vuitch, the U.S. Supreme Court upheld a law saying abortion was allowed for health reasons, which include psychological and physical well-being. Consequently, the District of Columbia became a destination for women seeking abortions starting that year. The number of abortion clinics in the District has been declining in recent years, going from fourteen in 1982 to fifteen in 1992 to five in ...

Rozewie, Pomeranian Voivodeship

See also: Cape Rozewie Village in Pomeranian Voivodeship, PolandRozewieVillageLighthouseRozewieCoordinates: 54°49′47″N 18°20′09″E / 54.82972°N 18.33583°E / 54.82972; 18.33583Country PolandVoivodeshipPomeranianCountyPuckGminaWładysławowoPopulation323 Rozewie is a village on the south coast of the Baltic Sea in the Kashubia, in the administrative district of Gmina Władysławowo, within Puck County, Pomeranian Voivodeship, in northern Poland. It lies a...

 

Alien Trilogy

This article is about the video game. For the first three films in the Alien franchise, see Alien (franchise). 1996 video gameAlien TrilogyDeveloper(s)Probe EntertainmentPublisher(s)Acclaim EntertainmentPlatform(s)PlayStation, Saturn, MS-DOSReleasePlayStationNA: February 29, 1996EU: March 29, 1996[1]SaturnNA: August 8, 1996EU: September 4, 1996MS-DOSNA: December 2, 1996[2]EU: 1996Genre(s)First-person shooterMode(s)Single-player Alien Trilogy is a first-person shooter video gam...

 

SDN Cibubur 01 Pagi

Artikel ini perlu diwikifikasi agar memenuhi standar kualitas Wikipedia. Anda dapat memberikan bantuan berupa penambahan pranala dalam, atau dengan merapikan tata letak dari artikel ini. Untuk keterangan lebih lanjut, klik [tampil] di bagian kanan. Mengganti markah HTML dengan markah wiki bila dimungkinkan. Tambahkan pranala wiki. Bila dirasa perlu, buatlah pautan ke artikel wiki lainnya dengan cara menambahkan [[ dan ]] pada kata yang bersangkutan (lihat WP:LINK untuk keterangan lebih lanjut...

قضية ترينت

كانت قضية ترينت حادثًا دبلوماسيًا جرى عام 1861 خلال الحرب الأهلية الأمريكية، وقد أنذرت بحرب بين الولايات المتحدة والمملكة المتحدة. اعتقلت بحرية الولايات المتحدة بشكل غير قانوني اثنين من الدبلوماسيين الكونفدراليين من على متن سفينة بريطانية؛ مما أدى إلى احتجاج المملكة المت...

 

Associated Examining Board

Former British examination board Associated Examining BoardAbbreviationAEBMerged intoAQAFormation8 May 1953[1]Dissolved1 April 2000[2]PurposeExamination boardHeadquartersGuildford, UKRegion served England, Wales, Northern Ireland, and overseas schoolsFormerly calledJoint Examinations Board for the General Certificate of Education (May–December 1953)Associated Examining Board for the General Certificate of Education (December 1953–????) The Associated Examining Board (...

 

2020年夏季奧林匹克運動會射擊混合團體10公尺空氣手槍比賽

第三十二届夏季奥林匹克运动会射擊混合團體10公尺空氣手槍比賽颁奖典礼比賽場館陸上自衛隊朝霞訓練場日期2021年7月27日参赛选手40位選手，來自15個國家和地區参赛队伍20奖牌获得者01 ! 姜冉馨龐偉 中国02 ! 维塔利娜·巴察拉什金娜阿爾喬姆·切爾諾烏索夫 俄罗斯奥林匹克委员会03 ! 奥列娜·科斯捷维奇奧列格·奧梅利丘克 乌克兰2024 → 2020年夏季...

Angelo Capranica

Angelo Capranicacardinale di Santa Romana ChiesaAntoniazzo Romano, Madonna con bambino, un santo vescovo e sant'Agnese, affresco, Roma, Collegio Capranica; in ginocchio i cardinali Domenico (a sin.) e Angelo Capranica.  Incarichi ricoperti Arcivescovo metropolita di Manfredonia (1438-1447) Arcivescovo-vescovo di Ascoli Piceno(1447-1450) Arcivescovo-vescovo di Rieti (1450-1468) Governatore di Bologna (1458-1460) Legato apostolico di Bologna (1460-1468) Cardinale presbitero di Santa Croce ...

 

粗體

此條目没有列出任何参考或来源。 (2016年5月14日)維基百科所有的內容都應該可供查證。请协助補充可靠来源以改善这篇条目。无法查证的內容可能會因為異議提出而被移除。   关于维基百科中的勇於更新頁面，请见Wikipedia:BOLD 普通体与粗体 粗体是在正常字体样式（或字型）的基础上，通过加粗笔画实现的一种字体样式。例如，“维基百科”的粗体样式为“维基百科...