61 Cygni


61 Cygni

Expanded view of the star field around 61 Cygni. This system is located at the end of the arrow above.
Data pengamatan
Epos J2000.0      Ekuinoks J2000.0
Rasi bintang Cygnus
61 Cygni A
Asensio rekta  21j 06m 53.9434d
Deklinasi  +38° 44′ 57.898″
Magnitudo semu (V) 5.21
61 Cygni B
Asensio rekta  21j 06m 55.2648d"SIMBAD Query Result: NSV 13546 -- Flare Star". SIMBAD. Centre de Données astronomiques de Strasbourg. Diakses tanggal 2007-07-15.  (61 Cygni B)</ref>
Deklinasi  +38° 44′ 31.400″
Magnitudo semu (V) 6.03
Ciri-ciri
Kelas spektrum K5V / K7V
Indeks warna U−B +1.155 / +1.242[1]
Indeks warna B−V +1.139 / +1.320[1]
Jenis variabel A: BY Draconis
B: Flare star
Astrometri
Kecepatan radial (Rv)-64.3/-63.5 km/s
Gerak diri (μ) RA: 4156.93/
 4109.17 mdb/thn
Dek.: 3259.39/
 3144.17 mdb/thn
Paralaks (π)287,18±1,51 mdb
Jarak11,36 ± 0,06 tc
(3,48 ± 0,02 pc)
Magnitudo mutlak (MV)7.48/8.33
Detail
61 Cygni A
Massa0.70[2] M
Radius0.665 ± 0.005[3] R
Luminositas0.215 L
Gravitasi permukaan (log g)4.40[4]
Suhu4,526 ± 66[5] K
Metalisitas[Fe/H] = -0.20[4]
Rotasi35.37 d[6]
61 Cygni B
Massa0.63[2] M
Radius0.595 ± 0.008[3] R
Luminositas0.15 L
Gravitasi permukaan (log g)4.20[4]
Suhu4,077 ± 59[5] K
Metalisitas[Fe/H] = -0.27[4]
Rotasi37.84 d[6]
Orbit bintang ganda visual
Bintang sekunder 61 Cygni B
Periode (P) 678 ± 34 tahun
Sumbu semi-mayor (a) 24.272 ± 0.592"
Eksentrisitas (e) 0.49 ± 0.03
Inklinasi (i) 51 ± 2°
Bujur node (Ω) 178 ± 2°
Epoch periastron (T) 1709 ± 16
Penamaan lain
61 Cyg A/B

GJ 820 A/B, Struve 2758 A/B, ADS 14636 A/B, GCTP 5077.00 A/B [7]

61 Cyg A

V1803 Cyg, HD 201091, HIP 104214, HR 8085, BD+38°4343, LHS 62

61 Cyg B

HD 201092, HIP 104217, HR 8086, BD+38°4344,

LHS 63

61 Cygni merupakan bintang ganda di rasi Cygnus. Bintang ini terdiri dari dua bintang katai tipe K (K-type dwarf) yang saling mengorbit. 61 Cygni adalah salah satu bintang yang menarik untuk diteliti oleh para astronom. Pada tahun 1838, Friedrich Wilhelm Bessel mengukur jarak antara keberadaanya dengan Bumi, dan menghasil angka sekitar 10.4 tahun cahaya, lebih dekat daripada hasil yang diperoleh pada pengujian terakhir (11.4 tahun cahaya).[8] Setelah berbagai pengujian pada abad keduabelas, beberapa pelanet dilaporkan mengelilingi bintang ini, tetapi sejauh ini pernyataan tersebut belum teruji[9][10][11] To date, no planets have been confirmed in this system and all of the past claims are now considered spurious.

Etimologi

Bintang ini disebut juga Bintang Bessel (Bessel's Star)[12] atau Piazzi's Flying Star,[13]

Selain rasi Cygnus, bintang ini juga merupakan anggota dari kelompok berikut:

nama rasi / asterisma / kelompok asal arti anggota lainnya
61 Cygni Group[14] (antara lain): 31 Aql, HD 131111, HD 3443, β Col, π Men, HD 142, HD 55526, 14 Tau, HD 150275, 68 Vir, HD 53501

Referensi

  1. ^ a b Blanco, C.; Marilli, E.; Catalano, S. (1979). "Photoelectric observations of stars with variable H and K emission components. III". Astronomy and Astrophysics Supplement Series. 36: 297–306. Diakses tanggal 2007-02-04. 
  2. ^ a b Staff (June 8, 2007). "List of the Nearest 100 Stellar Systems". Research Consortium on Nearby Stars, Georgia State University. Diakses tanggal 2007-07-15. 
  3. ^ a b Kervella, P.; Mérand, A.; Pichon, B.; Thévenin, F.; Heiter, U.; Bigot, L.; Ten Brummelaar, T. A.; McAlister, H. A.; Ridgway, S. T.; Turner, N.; Sturmann, J.; Sturmann, L.; Goldfinger, P. J.; Farrington, C. (2008). "The radii of the nearby K5V and K7V stars 61 Cygni A & B. CHARA/FLUOR interferometry and CESAM2k modeling". Astronomy and Astrophysics. 488 (2): 667–674. doi:10.1051/0004-6361:200810080. 
  4. ^ a b c d Luck, R. Earle; Heiter, Ulrike (2005). "Stars within 15 Parsecs: Abundances for a Northern Sample". The Astronomical Journal. 129 (2): 1063–1083. doi:10.1086/427250. Diakses tanggal 2007-07-17. 
  5. ^ a b van Belle, Gerard T.; von Braun, Kaspar (2009). "Directly Determined Linear Radii and Effective Temperatures of Exoplanet Host Stars". The Astrophysical Journal. 694 (2): 1085–1098. doi:10.1088/0004-637X/694/2/1085. 
  6. ^ a b Böhm-Vitense, Erika (2007). "Chromospheric Activity in G and K Main-Sequence Stars, and What It Tells Us about Stellar Dynamos". The Astrophysical Journal. 657 (1): 486–493. doi:10.1086/510482. 
  7. ^ "SIMBAD Query Result: ADS 14636 AB -- Double or multiple star". SIMBAD. Centre de Données astronomiques de Strasbourg. Diakses tanggal 2009-04-01.  (61 Cygni)
  8. ^ Frommert, Hartmut; Kronberg, Christine. "Friedrich Wilhelm Bessel". Students for the Exploration and Development of Space. Diakses tanggal 2009-04-03. 
  9. ^ Walker, G. A. H.; Walker, A. R.; Irwin, A. W.; Larson, A. M.; Yang, S. L. S.; Richardson, D. C (1995). "A search for Jupiter-mass companions to nearby stars". Icarus. 116 (2): 359–375. doi:10.1006/icar.1995.1130. 
  10. ^ Cumming, A.; Marcy, G. W.; Butler, R. P. (1999). "The Lick planet search: detectability and mass thresholds". Astrophysical Journal. 526: 890–915. doi:10.1086/308020. 
  11. ^ Wittenmyer, R. A.; Endl, M.; Cochran, W.D.; Hatzes, A.; Walker, G. A. H.; Yang, S. L. S.; Paulson, D. B. (2006). "Detection limits from the McDonald Observatory planet search program". Astronomical Journal. 132: 177–188. doi:10.1086/504942. 
  12. ^ Pannekoek, Anton (1989). A History of Astronomy. Courier Dover Publications. hlm. 343. ISBN 0486659941. 
  13. ^ Hirshfeld, Alan (2001). Parallax: The Race to Measure the Cosmos. Macmillan. ISBN 0716737116. 
  14. ^ Eggen, O. J. (1959). "White dwarf members of the 61 Cygni group". The Observatory. 79: 135–39. Diakses tanggal 2007-07-17.  – Gives space velocity components of U=+94, V=-53 and W=-7 for HD 201091/2.

Pranala luar


Read other articles:

Not to be confused with Baghdad. Place in Wardak Province, AfghanistanBaghdādBaghdādLocation in AfghanistanCoordinates: 34°13′04″N 67°53′15″E / 34.21778°N 67.88750°E / 34.21778; 67.88750Country AfghanistanProvinceWardak ProvinceTime zone+ 4.30 Baghdād is a city in Wardak Province in central Afghanistan.[1] References ^ NGA GeoNames Database. National Geospatial-Intelligence Agency. Retrieved 2008-09-03. vteMaidan Wardak ProvinceCapital: Maid...

 

2001 single by Joanne BustedSingle by Joannefrom the album Do Not Disturb Released8 January 2001 (2001-01-08)[1]GenrePopLength 3:09 (album version) 3:12 (single version) LabelBlue Planet ProductionsSongwriter(s) Joanne Accom Maxim Kourilov Producer(s) George Papapetros Maxim Kourilov Joanne singles chronology Breakin' There's No Stoppin' Us (2000) Busted (2001) So Damn Fine (2001) Busted is a song by Australian recording artist Joanne. It was released as the fourth sing...

 

Свалявчик Василь Петрович Народження 14 жовтня 1951(1951-10-14) (72 роки)с. Зняцеве, Мукачівський район, Закарпатська областьКраїна  УкраїнаНавчання Ужгородське училище прикладного мистецтва (1971)Діяльність художникЧлен Спілка радянських художників УкраїниНагороди Васи́...

Strombach Stadt Gummersbach Koordinaten: 51° 1′ N, 7° 32′ O51.0241666666677.5294444444444285Koordinaten: 51° 1′ 27″ N, 7° 31′ 46″ O Höhe: 285 m ü. NN Einwohner: 2524 (30. Jun. 2016) Postleitzahl: 51643 Vorwahl: 02261 Strombach (Gummersbach) Lage von Strombach in Gummersbach Strombach ist ein Ortsteil der Stadt Gummersbach im Oberbergischen Kreis im südlichen Nordrhein-Westfalen. Inhaltsverzeichnis 1 ...

 

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) محمد نور سيف معلومات شخصية تاريخ الميلاد 1323 هـ في منطقة الراس دبي - الإمارات العربية المتحدة تاريخ الوفاة...

 

Elegiac poetry collection by Ovid For other uses, see Tristia (disambiguation). Ovid Banished from Rome (1838) by J. M. W. Turner The Tristia (Sorrows or Lamentations) is a collection of letters written in elegiac couplets by the Augustan poet Ovid during his exile from Rome. Despite five books of his copious bewailing of his fate, the immediate cause of Augustus's banishment of the most acclaimed living Latin poet to Pontus in AD 8 remains a mystery. In addition to the Tristia, Ovid wrote an...

As one of the methods of structural analysis, the direct stiffness method, also known as the matrix stiffness method, is particularly suited for computer-automated analysis of complex structures including the statically indeterminate type. It is a matrix method that makes use of the members' stiffness relations for computing member forces and displacements in structures. The direct stiffness method is the most common implementation of the finite element method (FEM). In applying the method, t...

 

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...

 

2009 video gameRunes of MagicDeveloper(s)Runewaker EntertainmentPublisher(s)Gameforge, Runewaker Entertainment, Simyacı BilişimPlatform(s)Microsoft WindowsRelease March 19, 2009 October 12, 2023 October 22, 2009 [1] [2] [3]Genre(s)Fantasy, MMORPGMode(s)Multiplayer online Runes of Magic (RoM) is a massively multiplayer online role-playing game (MMORPG) developed by the Taiwanese developer Runewaker Entertainment and adapted for the English and German-speaking market b...

Tower mill at Caston, Norfolk, EnglandCaston WindmillCaston WindmillOriginMill nameCaston WindmillMill locationTL 9510 9816Operator(s)PrivateYear built1864InformationPurposeCorn millTypeTower millStoreysSix storeysNo. of sailsFour sailsType of sailsDouble Patent sailsWindshaftcast ironWindingFantailFantail bladesSix bladesAuxiliary powerHornsby Oil engineNo. of pairs of millstonesThree pairs, a fourth pair driven by engine.Size of millstones4 feet (1.22 m) Caston Tower Windmill is a grad...

 

KulliPlan of the Kulli settlement Kasota Qila Mound IIGeographical rangeBalochistan (Gedrosia) in PakistanDatesca. 2500 - 2000 BCEMajor sitesNindowari The Kulli culture was a prehistoric culture in southern Balochistan (Gedrosia) in Pakistan ca. 2500 - 2000 BCE. The pottery and other artifacts are similar to those of the Indus Valley civilization and it is not clear whether the Kulli culture is a local variation of the Indus Valley civilization or an own culture complex. The culture is named ...

 

Emirati Minister of State Her ExcellencyReem Al Hashimyريم الهاشميReem Al Hashimy in January 2023Minister of State for International CooperationIncumbentAssumed office 14 February 2016PresidentKhalifa bin Zayed Al NahyanMohammed Bin Zayed Al NahyanPrime MinisterMohammed bin Rashid Al MaktoumCEO of Expo City Dubai AuthorityIncumbentAssumed office 15 July 2022Preceded byOffice establishedMinister of StateIn office21 February 2008 – 14 February 2016PresidentKhalifa b...

الخطوط الجوية الإسكندنافية الرحلة 347 ملخص الحادث التاريخ 3 نوفمبر 1994 نوع الحادث اختطاف الموقع مطار أوسلو-غاردرموين ، أوسلو، النرويج الركاب 122 الطاقم 6 الجرحى 0 الوفيات 0 الناجون 128 (جميعهم) النوع ماكدونل دوغلاس إم دي-80 المالك الخطوط الجوية الإسكندنافية بداية الرحلة مطار بارد...

 

1930s analog standard-definition television resolution standard 375-line corresponds to two different electronic television systems, both using 375 scan lines. One system (monochrome, 50 fields per second, interlaced) was used in Germany after 1936 along with the 180-line system, being replaced in a few years by the superior 441-line system. It was also tested in Italy around the same time. In the United States a completely different system (field sequential color, 120 fields per second, inte...

 

КоммунаМаквильMacqueville 45°48′00″ с. ш. 0°13′00″ з. д.HGЯO Страна  Франция Регион Пуату — Шаранта Департамент Шаранта Приморская Кантон Мата История и география Площадь 11,21 км²[1] Часовой пояс UTC+1:00, летом UTC+2:00 Население Население 296 человек (2010) Цифровые иден...

Martos municipio de España y ciudadBanderaEscudo Plaza de la Constitución, Arco del Paseo del Calvario, Monasterio de la Santísima Trinidad, Fortaleza de la Villa, panorámica de Martos desde el mirador de Santa María de la Villa, olivo centenario y Torre Almedina y muralla urbana. MartosUbicación de Martos en España. MartosUbicación de Martos en la provincia de Jaén. Mapa interactivo — MartosPaís  España• Com. autónoma  Andalucía• Provincia ...

 

Railway line in Indonesia 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: Duri–Tangerang railway – news · newspapers · books · scholar · JSTOR (May 2016) (Learn how and when to remove this template message) Duri–Tangerang railwayOverviewNative nameJalur kereta api Duri–TangerangStatusOperationalOwnerPT...

 

Sequence of battles (1628–1812) Hill States–Sikh WarsGuru Gobind Singh shooting an arrow from Anandpur FortDate1682-1815 (Intermittent)LocationPunjabSivalik HillsResult Sikh VictoryTerritorialchanges Sikhs rule over Anandpur Sahib and different territories of the RajasBelligerents Akal Sena (1682 - 1699) Khalsa Fauj (1699 - 1735) Dal Khalsa (1735 - 1799) Sikh Empire (1799-1815) Alliance of the Hill State Rajas of the Sivalik Hills Bilaspur Garhwal Kangra Mandi Jammu Chamba Nurpur Kullu Ke...

三井ガーデンホテル六本木プレミアMitsui Garden Hotel Roppongi Tokyo Premier 三井ガーデンホテル六本木プレミア(2020年1月31日撮影) ホテル概要正式名称 三井ガーデンホテル六本木プレミア運営 三井不動産ホテルマネジメント[1]所有者 三井不動産株式会社[1]階数 1 - 14階部屋数 257室敷地面積 1,861.43[2] m²建築面積 999.00[2] m²延床面積 12,012.89[2] m...

 

Art style, form of Gothic art The Agony in the Garden with the Donor Louis I, Duke of Orléans, Colart de Laon, c. 1405-1408, Prado Museum International Gothic is a period of Gothic art which began in Burgundy, France, and northern Italy in the late 14th and early 15th century.[1] It then spread very widely across Western Europe, hence the name for the period, which was introduced by the French art historian Louis Courajod at the end of the 19th century.[2] Artists and p...

 

Strategi Solo vs Squad di Free Fire: Cara Menang Mudah!