79P/du Toit–Hartley

79P/du Toit–Hartley
Discovery
Discovered byDaniel du Toit, Boyden Observatory, South Africa and Malcolm Hartley of the UK Schmidt Telescope Unit, Siding Spring, Australia
Discovery date9 April 1945
Designations
1987 IX, 1986q, 79P/1982 C1-A, 1982 II, 1982b, 79P/1945 G1, 1945 II, 1945c
Orbital characteristics
Epoch9 December 2014
Aphelion4.83 AU
Perihelion1.1233 AU
Semi-major axis2.9460 AU
Eccentricity0.6187
Orbital period5.06 a
Inclination3.145°
Last perihelion13 Sep 2018[1]
23 Aug 2013
Next perihelion2023-Sep-30[2][3]

79P/du Toit–Hartley or du Toit 2 is a periodic comet, now divided into two parts, in the Solar System with an orbital period of 5.06 years. It next comes to perihelion in September 2023 but is only expected to reach about apparent magnitude 18.[3] It will be less than 90 degrees from the Sun from February 2023 until June 2024. On 26 May 2024 it will be 2.7 AU from the Sun and Earth.[4]

It was originally discovered by Daniel du Toit at the Boyden Observatory, Bloemfontein, South Africa (then administered by Harvard College) on 9 April 1945 with a brightness of apparent magnitude 10.[5]

Uncertainties in the calculation of the orbit meant the comet was lost until rediscovered by Malcolm Hartley of the UK Schmidt Telescope Unit, Siding Spring, Australia in 1982, when it was found to have broken into two parts, probably in 1976. Both parts had a brightness of magnitude 17. Observed in 1987, it was missed in 1992 but rediscovered by astronomers at Los Molinos Observatory, Uruguay on 4 March 2003 at magnitude 17. Fragment 79P-B is lost as it only has a 23-day observation arc from 1982.

See also

References

  1. ^ MPC
  2. ^ "Horizons Batch for 79P-B/du Toit-Hartley (90000843) on 2023-Sep-30" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2022-06-27. (JPL#17 Soln.date: 2021-May-04)
  3. ^ a b Seiichi Yoshida (2022-12-10). "79P/du Toit-Hartley". Seiichi Yoshida's Comet Catalog. Retrieved 2023-08-05.
  4. ^ "Horizons Batch for 79P-B/du Toit-Hartley (90000843) on 2024-May-26". JPL Horizons. Retrieved 2023-08-05. (JPL#17 Soln.date: 2021-May-04)
  5. ^ "79P/du Toit-Hartley". Cometography. Archived from the original on 5 July 2008. Retrieved 25 February 2015.


Numbered comets
Previous
78P/Gehrels 		79P/du Toit–Hartley Next
80P/Peters–Hartley


Stub icon

This comet-related article is a stub. You can help Wikipedia by expanding it.

Read other articles:

Daftar Duta Besar Indonesia untuk Kanada

Duta Besar Indonesia untuk KanadaMerangkap ICAOLambang Kementerian Luar Negeri Republik IndonesiaPetahanaDaniel Tumpal Sumurung Simanjuntaksejak 17 November 2021KantorOttawa, KanadaDitunjuk olehPresiden IndonesiaPejabat perdanaAli SastroamidjojoDibentuk1953Situs webkemlu.go.id/ottawa Berikut adalah daftar diplomat Indonesia yang pernah menjabat Duta Besar Republik Indonesia untuk Kanada: No. Foto Nama Mulai menjabat Selesai menjabat Merangkap Diangkat oleh Ref. 1 Ali Sastroamidjojo 1953 ...

 

 

Focke-Wulf Fw 61

Focke-Wulf Fw 61 sering sebuah helikopter fungsional pertama, dianggap praktis, pertama kali terbang pada tahun 1936. Pesawat ini juga dikenal sebagai Fa 61, sebagai Focke memulai perusahaan baru-Focke Achgelis-setelah pembangunan dimulai. Referensi Coates, Steve and Jean-Christophe Carbonel. Helicopters of the Third Reich. Crowborough, UK: Classic Publications Ltd., 2002. ISBN 1-903223-24-5. Green, William. Aircraft of the Third Reich, Vol.1. London: Aerospace Publishing Limited, (First ed....

 

 

Norwegian Canadians

Canadians with Norwegian ancestry Norwegian CanadiansNorsk-kanadiereTotal population463,275 (1.3%)(by ancestry, 2016 Census)[1]Regions with significant populations Canada Alberta156,595[2] British Columbia138,430[3] Saskatchewan68,640[4] Ontario59,335[5] Manitoba19,600[6]LanguagesCanadian EnglishCanadian FrenchNorwegianReligionChristianity (predominantly Lutheranism with other notable Christian minorities)Irreligion...

The Hacker's Diet

Diet plan by John Walker This article relies excessively on references to primary sources. Please improve this article by adding secondary or tertiary sources. Find sources: The Hacker's Diet – news · newspapers · books · scholar · JSTOR (October 2009) (Learn how and when to remove this template message) The Hacker's Diet (humorously subtitled How to lose weight and hair through stress and poor nutrition) is a diet plan created by the founder of Autode...

 

 

تقويم بنغالي

تقويم بنغالي يستخدم التقويم البنغالي في بنغلادش وولاية غرب البنغال الهندية والمناطق الناطقة باللغة البنغالية عموماً، يعد التقويم البنغالي تقويم قمري شمسي أي أنه يعتمد على الشمس والقمر لتحديد التاريخ، تم استخدام التقويم لأول مرة في عهد السلطان جلال الدين أكبر الذي حكم إم...

 

 

Santa Clara University

Jesuit university in Santa Clara, California Santa Clara UniversityLatin: Universitas Santae ClaraeFormer namesSanta Clara College (1851), University of Santa Clara (1912–1984)MottoAd Majorem Dei Gloriam (Latin)Motto in EnglishFor the Greater Glory of GodTypePrivate universityEstablished1851; 173 years ago (1851)Religious affiliationCatholic Church (Jesuit)Academic affiliationsAJCU NAICU ACCUSpace-grantEndowment$1.47 billion (2022)[1]PresidentJulie SullivanPr...

Denver Nuggets

Disambiguazione – Se stai cercando la vecchia squadra della NBL, vedi Denver Nuggets (1948-1950). Questa voce o sezione sull'argomento società di pallacanestro 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. Denver NuggetsPallacanestro Campione NBA in carica Campione della Western Conference Segni distintivi Uniformi di gara Casa Trasferta Terza divis...

 

 

Kari

Berbagai jenis kari sayuran dari India. Murgh makhani (butter chicken). Kari ayam India Kari atau yang dikenal di Indonesia sebagai kare adalah berbagai jenis hidangan berkuah yang dimasak dengan rempah-rempah hingga mempunyai cita rasa tajam dan pedas. Kari berasal dari wilayah Asia Selatan, terutama di India, dan telah meluas ke seluruh negara di kawasan Asia Pasifik dan Eropa. Bumbu dan rempah-rempah yang digunakan untuk membuat kari sangat beragam dan tidak terbatas pada ketumbar, kunyit,...

 

 

Reuven Rivlin

10th President of Israel Reuven Rivlinרְאוּבֵן רִיבְלִיןOfficial portrait, 201410th President of IsraelIn office24 July 2014 – 7 July 2021Prime MinisterBenjamin NetanyahuNaftali BennettPreceded byShimon PeresSucceeded byIsaac Herzog14th Speaker of the KnessetIn office10 March 2009 – 22 February 2013PresidentShimon PeresPrime MinisterEhud Olmert Benjamin NetanyahuPreceded byDalia ItzikSucceeded byYuli-Yoel EdelsteinIn office28 February 2003 – ...

هنود

هنودمعلومات عامةنسبة التسمية الهند التعداد الكليالتعداد قرابة 1.21 مليار[1][2]تعداد الهند عام 2011ق. 1.32 مليار[3]تقديرات عام 2017ق. 30.8 مليون[4]مناطق الوجود المميزةبلد الأصل الهند البلد الهند  الهند نيبال 4,000,000[5] الولايات المتحدة 3,982,398[6] الإمار...

 

 

哈比卜·布尔吉巴

哈比卜·布尔吉巴الحبيب بورقيبة‎第1任突尼斯总统任期1957年7月25日—1987年11月7日（30年105天）总理巴希·拉德加姆（英语：Bahi Ladgham）（1969年－1970年）赫迪·努伊拉（英语：Hedi Nouira）（1970年－1980年）穆罕默德·姆扎利（英语：Mohammed Mzali）（1980年－1986年）拉希德·斯法尔（英语：Rachid Sfar）（1986年－1987年）宰因·阿比丁·本·阿里（1987年）继任宰因·阿比丁·本·...

 

 

تفاعل ألدول

تفاعل ألدول (أو التفاعل الألدولي) هو تفاعل مهم في الكيمياء العضوية حيث يتكون عنه رابطة كربون-كربون.[1][2][3] يتضمن التفاعل إضافة نيكليوفيلية لإينولات الكيتون إلى ألدهيد لتكوين كيتون بيتا هيدروكسيلي أو آلدول وهي وحدة بنائية توجد طبيعيًا في كثير من الجزيئات والدوا...

List of governors of Penang

This article may have too many section headers. Please help consolidate the article. (January 2018) (Learn how and when to remove this message) Governor of PenangYang di-Pertua Negeri Pulau PinangCoat of arms of PenangIncumbentAhmad Fuzi Abdul Razaksince 1 May 2021StyleTuan Yang TerutamaResidenceSeri MutiaraAppointerYang di-Pertuan AgongInaugural holderRaja Uda Raja MuhammadFormation31 August 1957; 66 years ago (1957-08-31)Websitewww.penang.gov.my/index.php/tyt The gov...

 

 

Geisha Girl (film 1952)

Artikel ini sebatang kara, artinya tidak ada artikel lain yang memiliki pranala balik ke halaman ini.Bantulah menambah pranala ke artikel ini dari artikel yang berhubungan atau coba peralatan pencari pranala.Tag ini diberikan pada November 2022. Geisha GirlSutradaraGeorge Breakston, C. Ray StahlProduserGeorge Breakston, C. Ray StahlDitulis olehC. Ray StahlSkenarioC. Ray StahlPemeranSteve Forrest, Martha Hyer, Tetsu Nakamura, Heihachirô Ôkawa, Dekao YokooPenata musikAlbert GlasserSinem...

 

 

Guided bus

Type of bus Not to be confused with Road-rail bus, Railbus, or Rail replacement bus service. Tram bus redirects here. For buses that look similar to trams, see Bi-articulated bus. You can help expand this article with text translated from the corresponding article in German. (October 2021) Click [show] for important translation instructions. View a machine-translated version of the German article. Machine translation, like DeepL or Google Translate, is a useful starting point for transla...

Shay locomotive

Geared steam locomotive This article relies excessively on references to primary sources. Please improve this article by adding secondary or tertiary sources. Find sources: Shay locomotive – news · newspapers · books · scholar · JSTOR (October 2021) (Learn how and when to remove this message) This article needs additional citations for verification. Please help improve this article by adding citations to reliable sources. Unsourced material may be chal...

 

 

Carnosine

Chemical compound Not to be confused with carnitine. Carnosine Names IUPAC name β-Alanylhistidine Systematic IUPAC name (2S)-2-(3-Aminopropanamido)-3-(3H-imidazol-4-yl)propanoic acid Other names β-Alanyl-L-histidine Identifiers CAS Number 305-84-0 Y 3D model (JSmol) Interactive imageInteractive image ChEBI CHEBI:15727 Y ChEMBL ChEMBL242948 Y ChemSpider 388363 Y ECHA InfoCard 100.005.610 IUPHAR/BPS 4559 KEGG C00386 Y PubChem CID 439224 UNII 8HO6PVN24W Y CompTox ...

 

 

Lachlan Shire

This article is about the local government area based in Condobolin. For the local government area based in Crookwell, see Upper Lachlan Shire. Local government area in New South Wales, AustraliaLachlan ShireNew South WalesLocation in New South WalesCoordinates33°03′S 147°09′E / 33.050°S 147.150°E / -33.050; 147.150Population 6,194 (2016 census)[1] 6,151 (2018 est.)[2] • Density0.41368/km2 (1.07142/sq mi)Area14,973 km2...

Земледелие инков

Земледе́лие и́нков — это одна из основных отраслей экономики империи Инков, занимавшаяся выращиванием сельскохозяйственных культур. Традиционно вся земля Тауантинсуйу, пригодная для выращивания любых культур, была поделена на три основные части. Первая принадлежа�...

 

 

Deep Space 1

Deep Space 1 Аппарат «Deep Space 1» на фоне кометы Борелли Заказчик НАСА / JPL Производитель General Dynamics Пролёт (9969) Брайль, 19P/Борелли Спутник Солнца Стартовая площадка Мыс Канаверал Ракета-носитель Дельта-2 7326 Запуск 24 октября 1998 12:08:00 UTC COSPAR ID 1998-061A SCN 25508 Технические характеристики Масса...