HD 79498

HD 79498
Observation data
Epoch J2000.0      Equinox J2000.0
Constellation Cancer
Right ascension 09h 15m 09.4020s[1]
Declination +23° 22′ 31.979″[1]
Apparent magnitude (V) 8.05[2]
Characteristics
Evolutionary stage main sequence
Spectral type G5 V[3] + M0 V[4]
Variable type None[5]
Astrometry
Radial velocity (Rv)19.94±0.14[1] km/s
Proper motion (μ) RA: −127.013[1] mas/yr
Dec.: −155.703[1] mas/yr
Parallax (π)20.5658 ± 0.0198 mas[1]
Distance158.6 ± 0.2 ly
(48.62 ± 0.05 pc)
Absolute magnitude (MV)4.62[6]
Details
Primary (A)
Mass1.08[7] M☉
Radius1.05[2] R☉
Luminosity1.07[2] L☉
Surface gravity (log g)4.43[3] cgs
Temperature5,800[3] K
Metallicity [Fe/H]+0.21[3] dex
Rotational velocity (v sin i)2.0[8] km/s
Age2.8[7] Gyr
Secondary (B)
Temperature3,881[9] K
Metallicity [Fe/H]0.18[9] dex
Other designations
BD+23°2063, HD 79498, HIP 45406, SAO 80717, 2MASS J09150941+2322323[10]
Database references
SIMBADdata

HD 79498 is a double star in the northern constellation of Cancer. The primary component of this pair has an orbiting exoplanet companion. This star is too faint to be viewed with the naked eye, having an apparent visual magnitude of 8.05.[2] The system is located at a distance of 159 light years based on parallax measurements,[1] and is drifting further away with a heliocentric radial velocity of 20 km/s.[1] It has a relatively high proper motion, traversing the celestial sphere at an angular rate of 0.2″·yr−1.[11]

The primary, designated component A, is a G-type main-sequence star with a stellar classification of G5 V.[3] It has 8%[7] greater mass compared to the Sun and a 5% larger girth.[2] The star is estimated to be 2.8[7] billion years old and appears to be spinning slowly with a projected rotational velocity of 2.0 km/s.[8] It has a higher than solar abundance of elements other than hydrogen and helium; what astronomers term a metal-rich star.[12] The star is radiating 7% more luminosity than the Sun from its photosphere at an effective temperature of 5,800 K.[3] There appears to be only a low level of magnetic activity in the star's chromosphere.[5]

The secondary member, component B, is located at a projected separation of 2,900 AU from the primary.[5] It is a small red dwarf of spectral class M0 V.[4]

Planetary system

The McDonald Observatory planet search program discovered an exoplanet orbiting the primary in 2011 using the radial velocity method.[5]

The HD 79498 planetary system[5]
Companion
(in order from star) 		Mass Semimajor axis
(AU) 		Orbital period
(days) 		Eccentricity Inclination Radius
Ab ≥1.34 ± 0.07 MJ 3.13 ± 0.08 1966 ± 41 0.59 ± 0.02 — —

See also

References

  1. ^ a b c d e f g h 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 e Ment, Kristo; et al. (2018). "Radial Velocities from the N2K Project: Six New Cold Gas Giant Planets Orbiting HD 55696, HD 98736, HD 148164, HD 203473, and HD 211810". The Astronomical Journal. 156 (5). 213. arXiv:1809.01228. Bibcode:2018AJ....156..213M. doi:10.3847/1538-3881/aae1f5. S2CID 119243619.
  3. ^ a b c d e f Montes, D.; et al. (September 2018). "Calibrating the metallicity of M dwarfs in wide physical binaries with F-, G-, and K-primaries - I: High-resolution spectroscopy with HERMES: stellar parameters, abundances, and kinematics". Monthly Notices of the Royal Astronomical Society. 479 (1): 1332–1382. arXiv:1805.05394. Bibcode:2018MNRAS.479.1332M. doi:10.1093/mnras/sty1295. S2CID 119260219.
  4. ^ a b Alonso-Floriano, F. J.; et al. (May 2015). "CARMENES input catalogue of M dwarfs. I. Low-resolution spectroscopy with CAFOS". Astronomy & Astrophysics. 577: 19. arXiv:1502.07580. Bibcode:2015A&A...577A.128A. doi:10.1051/0004-6361/201525803. S2CID 53135130. A128.
  5. ^ a b c d e Robertson, Paul; et al. (April 2012). "The McDonald Observatory Planet Search: New Long-period Giant Planets and Two Interacting Jupiters in the HD 155358 System". The Astrophysical Journal. 749 (1): 39. arXiv:1202.0265. Bibcode:2012ApJ...749...39R. doi:10.1088/0004-637X/749/1/39. S2CID 59273311.
  6. ^ Boro Saikia, S.; et al. (2018). "Chromospheric activity catalogue of 4454 cool stars. Questioning the active branch of stellar activity cycles". Astronomy and Astrophysics. 616: 616. arXiv:1803.11123. Bibcode:2018A&A...616A.108B. doi:10.1051/0004-6361/201629518. S2CID 118915212.
  7. ^ a b c d Aguilera-Gómez, Claudia; Ramírez, Iván; Chanamé, Julio (2018). "Lithium abundance patterns of late-F stars: An in-depth analysis of the lithium desert". Astronomy and Astrophysics. 614: A55. arXiv:1803.05922. Bibcode:2018A&A...614A..55A. doi:10.1051/0004-6361/201732209. S2CID 62799777.
  8. ^ a b Llorente de Andrés, F.; et al. (October 2021). "The evolution of lithium in FGK dwarf stars. The lithium-rotation connection and the Li desert". Astronomy and Astrophysics. 654: A137. arXiv:2108.05852. Bibcode:2021A&A...654A.137L. doi:10.1051/0004-6361/202141339. ISSN 0004-6361.
  9. ^ a b Veyette, Mark J.; et al. (December 2017). "A Physically Motivated and Empirically Calibrated Method to Measure the Effective Temperature, Metallicity, and Ti Abundance of M Dwarfs". The Astrophysical Journal. 851 (1): 26. arXiv:1710.10259. Bibcode:2017ApJ...851...26V. doi:10.3847/1538-4357/aa96aa. 26.
  10. ^ "HD 79498". SIMBAD. Centre de données astronomiques de Strasbourg. Retrieved 15 August 2012.
  11. ^ Lépine, Sébastien; Shara, Michael M. (March 2005). "A Catalog of Northern Stars with Annual Proper Motions Larger than 0.15" (LSPM-NORTH Catalog)". The Astronomical Journal. 129 (3): 1483–1522. arXiv:astro-ph/0412070. Bibcode:2005AJ....129.1483L. doi:10.1086/427854. S2CID 2603568.
  12. ^ Schneider, Jean (1995). "Planet HD 79498 b". Extrasolar Planets Encyclopaedia. Retrieved 2012-08-22.


Read other articles:

List of drama films

Drama films By decade Lists 1900s 1910s 1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s 2010s 2020s vte List of drama films is a chronological listing of films in the drama genre. List of drama films of the 1900s List of drama films of the 1910s List of drama films of the 1920s List of drama films of the 1930s List of drama films of the 1940s List of drama films of the 1950s List of drama films of the 1960s List of drama films of the 1970s List of drama films of the 1980s List of drama...

 

 

Close to Eden

UrgaClose to EdenSutradaraNikita MikhalkovProduserMichel SeydouxJean-Louis PielRené CleitmanDitulis olehRustam IbragimbekovNikita MikhalkovPemeranBayaertuBademaVladimir GostyukhinPenata musikEduard ArtemyevSinematograferVilen KalyutaPenyuntingJoëlle HacheDistributorMiramax Films (AS)Curzon Video (UK)Tanggal rilis1991Durasi109 menit (US VHS)114 menit (UK VHS)118 menit (Rusia)NegaraUni SovietBahasaMongolia / Rusia / Mandarin Urga adalah sebuah film 1991 buatan sutradara Rusia Nikita Mik...

 

 

Giulio Tutore

Giulio Tutore (in latino Iulius Tutor; ... – ...; fl. 69-70) è stato un militare gallo dell'esercito imperiale romano durante la rivolta batava (69-70). Indice 1 Biografia 2 Bibliografia 2.1 Fonti primarie 2.2 Fonti secondarie Biografia Membro della tribù dei Treviri, Tutore era stato messo da Vitellio a capo delle truppe della riva sinistra del Reno. Quando la rivolta batava scoppiò, organizzò la congiura contro i comandi militari romani assieme al treviro Giulio Classico e al lin...

Katrina Kaif

Artikel ini tidak memiliki referensi atau sumber tepercaya sehingga isinya tidak bisa dipastikan. Tolong bantu perbaiki artikel ini dengan menambahkan referensi yang layak. Tulisan tanpa sumber dapat dipertanyakan dan dihapus sewaktu-waktu.Cari sumber: Katrina Kaif – berita · surat kabar · buku · cendekiawan · JSTOR artikel ini perlu dirapikan agar memenuhi standar Wikipedia. Tidak ada alasan yang diberikan. Silakan kembangkan artikel ini semampu Anda....

 

 

Basilika Bunda dari Daurade, Toulouse

Basilika Bunda dari DauradeBasilika Minor Bunda dari DauradePrancis: Basilique Notre-Dame de la DauradeBasilika Bunda dari DauradeLokasiToulouseNegara PrancisDenominasiGereja Katolik RomaArsitekturStatusBasilika minorStatus fungsionalAktifAdministrasiKeuskupan AgungKeuskupan Agung Toulouse Basilika Bunda dari Daurade (Prancis: Basilique Notre-Dame de la Daurade) adalah sebuah gereja basilika minor Katolik yang terletak di Toulouse, Prancis. Gereja ini awalnya didirikan pada tahun...

 

 

Paraguay–Taiwan relations

Bilateral relationsTaiwanese–Paraguayan relations Paraguay Taiwan Consulate-General of Taiwan in Ciudad del Este Paraguay–Taiwan relations, also known as Sino–Paraguayan relations or Paraguayan–Taiwanese relations are foreign relations between the Republic of Paraguay and the Republic of China (Taiwan). Both governments established diplomatic relations on 8 July 1957. Paraguay conforms to the One-China policy and is one of the 12 countries in the world (and the only one in South Ameri...

约翰斯顿环礁

此條目可参照英語維基百科相應條目来扩充。 (2021年5月6日)若您熟悉来源语言和主题，请协助参考外语维基百科扩充条目。请勿直接提交机械翻译，也不要翻译不可靠、低品质内容。依版权协议，译文需在编辑摘要注明来源，或于讨论页顶部标记{{Translated page}}标签。 约翰斯顿环礁Kalama Atoll 美國本土外小島嶼 Johnston Atoll 旗幟颂歌：《星條旗》The Star-Spangled Banner約翰斯頓環礁�...

 

 

Повітряні сили Збройних сил України

Ця стаття потребує додаткових посилань на джерела для поліпшення її перевірності. Будь ласка, допоможіть удосконалити цю статтю, додавши посилання на надійні (авторитетні) джерела. Зверніться на сторінку обговорення за поясненнями та допоможіть виправити недоліки. Мат...

 

 

Jo Bole So Nihaal (film)

2005 filmJo Bole So NihaalDirected byRahul RawailWritten bySanjay ChhelAman [bharat Sunandaa ]JafferyBholu Khan (dialogues)Story byRaju SaigalProduced byN.R. PachisiaStarringSunny DeolShillpi SharmaKamaal KhanCinematographyJailesh OberoiSurendra RaoAseem BajajEdited byRahul RawailMusic byAnand Raj AnandProductioncompaniesSahara Movie StudiosVR EntertainmentsDistributed byT-SeriesMDR ProductionsRelease date 13 May 2005 (2005-05-13) Running time127 minutesCountriesIndiaUnited St...

العلاقات السنغالية الوسط إفريقية

العلاقات السنغالية الوسط أفريقية السنغال جمهورية أفريقيا الوسطى   السنغال   جمهورية أفريقيا الوسطى تعديل مصدري - تعديل   العلاقات السنغالية الوسط أفريقية هي العلاقات الثنائية التي تجمع بين السنغال وجمهورية أفريقيا الوسطى.[1][2][3][4][5] مقارن...

 

 

بيتر إليتش تشايكوفسكي

بيتر إليتش تشايكوفسكي (بالروسية: Петръ Ильичъ Чайковскій)‏، و(بالروسية: Пётр Ильич Чайковский)‏    معلومات شخصية الميلاد 25 أبريل 1840 [1][2][3][4]  فوتكينسك[5]  الوفاة 25 أكتوبر 1893 (53 سنة) [6][1][2][3][4]  سبب الوفاة كوليرا  مكان ال�...

 

 

Gua Surowono

Gua Surowono merupakan sebuah gua atau lorong bawah tanah yang di dalamnya mengalir sebuah sungai yang airnya sangat jernih. Gua Surowono ini berada di Desa Canggu, Kecamatan Badas, Kabupaten Kediri,[1] yang konon merupakan sistem kanal, bagian dari Candi Surowono, yang telah ada sejak zaman Kerajaan Kediri. Pintu masuk ke lorong Gua Surowono ditutup pagar besi untuk keamanan. Memasuki lorong Gua Surowono harus dipandu oleh penjaga, karena terdapat percabangan lorong yang bisa membuat...

Saint Hill Manor

Country house in Saint Hill Green, East GrinsteadSaint Hill ManorTypeCountry houseLocationSaint Hill Green, East GrinsteadCoordinates51°6′19.99″N 0°01′36.55″W / 51.1055528°N 0.0268194°W / 51.1055528; -0.0268194OS grid referenceTQ 38237 35883AreaWest SussexBuilt1792ArchitectBenjamin Henry Latrobe (attrib.)Architectural style(s)Late GeorgianOwnerChurch of Scientology Listed Building – Grade IIOfficial nameSaint Hill ManorDesignated2 August 1972Reference...

 

 

Gran Premio del Canada 2011

Voce principale: Campionato mondiale di Formula 1 2011.  Gran Premio del Canada 2011 846º GP del Mondiale di Formula 1Gara 7 di 19 del Campionato 2011 Data 12 giugno 2011 Nome ufficiale XLVIII Grand Prix du Canada Luogo Montréal Percorso 4,361 km / 2,71 US mi Circuito cittadino Distanza 70 giri, 305,27 km/ 189,7 US mi Clima Pioggia ad intervalli regolari, parzialmente asciutto nel finale della gara Note Gara sospesa per pioggia al 25º giro Risultati Pole position Giro più veloce Seb...

 

 

Zhou Xiaochuan

Chinese economist This article has multiple issues. Please help improve it or discuss these issues on the talk page. (Learn how and when to remove these template messages) This article's tone or style may not reflect the encyclopedic tone used on Wikipedia. See Wikipedia's guide to writing better articles for suggestions. (January 2021) (Learn how and when to remove this message) A major contributor to this article appears to have a close connection with its subject. It may require cleanup to...

Ernesto Aparicio

Salvadoran footballer (born 1948) For the baseball player, see Ernesto Aparicio (baseball). This biography of a living person needs additional citations for verification. Please help by adding reliable sources. Contentious material about living persons that is unsourced or poorly sourced must be removed immediately from the article and its talk page, especially if potentially libelous.Find sources: Ernesto Aparicio – news · newspapers · books · scholar ...

 

 

西班牙国旗

此條目需要精通或熟悉相关主题的编者参与及协助编辑。 (2018年2月16日)請邀請適合的人士改善本条目。更多的細節與詳情請參见討論頁。 西班牙血与金用途海陸通用國旗​比例2:3形式旗面由三个平行的长方形组成，中间的黄色，占旗面的一半，上下两边有两个面积相等的红色长方形，黄色部分偏左绘有西班牙国徽。 用途民用旗（海陸）​比例2:3形式旗面由三个平行的...

 

 

臺灣總督府殖產局

臺灣總督府殖產局，簡稱殖產局，是設置於臺灣總督府的內部部局，負責調查及開發台灣的物產，包括農業、工業、商業、漁業、林業和礦業等。殖產局的組織經多次調整，從殖產部、殖產課發展至殖產局，之後再改組為米穀局、農商局和鑛工局；並管理多個物產檢查所、養成所和試驗場等單位。 概要 更多信息：殖產興業 台灣總督府於1895年（明治28年）5月成立時，在民政�...

Late termination of pregnancy

Late termination of pregnancyOther namesPostviability abortion, third trimester abortion, induced termination of pregnancy (ITOP),[1] late-term abortionSpecialtyObstetrics and gynecologyICD-10-PCSO04ICD-9-CM779.6MeSHD000028MedlinePlus002912[edit on Wikidata] Late termination of pregnancy, also referred to politically as third trimester abortion,[2] describes the termination of pregnancy by inducing labor during a late stage of gestation.[3] In this context, late i...

 

 

Semangat, Merdeka, Karo

Artikel ini tidak memiliki referensi atau sumber tepercaya sehingga isinya tidak bisa dipastikan. Tolong bantu perbaiki artikel ini dengan menambahkan referensi yang layak. Tulisan tanpa sumber dapat dipertanyakan dan dihapus sewaktu-waktu.Cari sumber: Semangat, Merdeka, Karo – berita · surat kabar · buku · cendekiawan · JSTOR SemangatDesaNegara IndonesiaProvinsiSumatera UtaraKabupatenKaroKecamatanMerdekaKode pos22153Kode Kemendagri12.06.15.2002 L...