139P/Väisälä–Oterma - Comet

astro.wikisort.org - Comet

139P/Väisälä–Oterma is a periodic comet in the Solar System. When it was discovered in 1939 it was not recognized as a comet and designated as asteroid 1939 TN.

139P/Väisälä–Oterma
Discovery
Discovered by	Yrjö Väisälä Liisi Oterma
Discovery date	October 7, 1939
Alternative designations	1939 TN; 1998 WG22
Orbital characteristics ^A
Epoch	March 6, 2006
Aphelion	5.62 AU
Perihelion	3.402 AU
Semi-major axis	4.511 AU
Eccentricity	0.2458
Orbital period	9.58 a
Inclination	2.3296°
Last perihelion	December 10, 2017 April 19, 2008
Next perihelion	2027-Jul-23[1]

References

External links

Orbital simulation from JPL (Java) / Horizons Ephemeris
139P/Vaisala-Oterma – Seiichi Yoshida @ aerith.net
139P at Kronk's Cometography

Comets

Features	Nucleus Coma Tails Antitail Comet dust Meteor shower
Types	Periodic Numbered Lost Long period Halley-type Jupiter-family Encke-type Main-belt Non-periodic Near-parabolic Hyperbolic Unknown-orbit Great Comet Sungrazing (Kreutz) Extinct Exocomet Interstellar
Related	Naming of comets Centaur Comet discoverers LINEAR Extraterrestrial atmosphere Oort cloud Small Solar System body Asteroid
Exploration	List of missions to comets List of comets visited by spacecraft
Latest	C/2021 O3 (PanSTARRS) C/2021 J1 (Maury-Attard) C/2021 A1 (Leonard) C/2020 F8 (SWAN) C/2020 F5 (MASTER) C/2020 F3 (NEOWISE) C/2019 Y4 (ATLAS) C/2019 Y1 (ATLAS) 2I/Borisov C/2018 C2 (Lemmon) C/2017 U7 C/2016 U1 (NEOWISE) C/2015 G2 (MASTER) C/2015 F5 (SWAN-XingMing) C/2015 F3 C/2015 ER61 (PanSTARRS) C/2014 UN271 (Bernardinelli-Bernstein) C/2014 Q2 (Lovejoy) C/2014 E2 (Jacques) C/2013 US10 (Catalina) C/2013 A1 (Siding Spring) C/2012 S4 (PANSTARRS) C/2012 K1 (PANSTARRS)
Culture and speculation	Antimatter comet Comets in fiction Comet vintages

Lists of comets (more)

Periodic
comets

Until 1985
(all)

After 1985
(notable)

Comet-like
asteroids

596 Scheila
2060 Chiron (95P)
4015 Wilson–Harrington (107P)
7968 Elst–Pizarro (133P)
165P/LINEAR
166P/NEAT
167P/CINEOS
60558 Echeclus (174P)
118401 LINEAR (176P)
238P/Read
259P/Garradd
311P/PanSTARRS
324P/La Sagra
354P/LINEAR
P/2012 F5 (Gibbs)
P/2012 T1 (PANSTARRS)
P/2013 R3 (Catalina-PANSTARRS)
(300163) 2006 VW139

Lost

Recovered	11P/Tempel–Swift–LINEAR 15P/Finlay 17P/Holmes 27P/Crommelin 54P/de Vico–Swift–NEAT 55P/Tempel–Tuttle 57P/du Toit–Neujmin–Delporte 69P/Taylor 72P/Denning–Fujikawa 80P/Peters–Hartley 97P/Metcalf–Brewington 107P/Wilson–Harrington 109P/Swift–Tuttle 113P/Spitaler 122P/de Vico 157P/Tritton 177P/Barnard 205P/Giacobini 206P/Barnard–Boattini 271P/van Houten–Lemmon 273P/Pons–Gambart 289P/Blanpain
Destroyed	3D/Biela 73P/Schwassmann–Wachmann D/1993 F2 (Shoemaker–Levy 9)
Not found	D/1770 L1 (Lexell) 5D/Brorsen 18D/Perrine–Mrkos 20D/Westphal 25D/Neujmin 34D/Gale 75D/Kohoutek 83D/Russell 85D/Boethin

Visited by
spacecraft

Near-Parabolic
comets
(notable)

Until 1910	C/-43 K1 (Caesar's Comet) X/1106 C1 (Great Comet of 1106) C/1577 V1 (Great Comet of 1577) C/1652 Y1 C/1680 V1 (Great Comet of 1680, Kirsch's Comet, Newton's Comet)) C/1702 H1 (Comet of 1702) C/1729 P1 (Comet of 1729, Comet Sarabat) C/1743 X1 (Great Comet of 1744, Comet Klinkenberg-Chéseaux) C/1760 A1 (Great Comet of 1760) C/1769 P1 (Great Comet of 1769) C/1807 R1 (Great Comet of 1807) C/1811 F1 (Great Comet of 1811) C/1819 N1 (Great Comet of 1819) C/1823 Y1 (Great Comet of 1823) C/1843 D1 (Great March Comet of 1843) C/1847 T1 (Miss Mitchell's Comet) C/1858 L1 (Comet Donati) C/1861 G1 (Comet Thatcher) C/1861 J1 (Great Comet of 1861) C/1865 B1 (Great Southern Comet of 1865) X/1872 X1 (Pogson's Comet) C/1874 H1 (Comet Coggia) C/1881 K1 (Comet Tebbutt) C/1882 R1 (Great Comet of 1882) C/1887 B1 (Great Southern Comet of 1887) C/1890 V1 (Comet Zona) C/1901 G1 (Great Comet of 1901) C/1910 A1 (Great January Comet of 1910)
After 1910	C/1911 O1 (Brooks) C/1911 S3 (Beljawsky) C/1927 X1 (Skjellerup–Maristany) C/1931 P1 (Ryves) C/1941 B2 (de Kock-Paraskevopoulos) [de] C/1947 X1 (Southern Comet) [de] C/1948 V1 (Eclipse) C/1956 R1 (Arend–Roland) C/1957 P1 (Mrkos) C/1961 O1 (Wilson-Hubbard) [de] C/1961 R1 (Humason) C/1962 C1 (Seki-Lines) [de] C/1963 R1 (Pereyra) C/1965 S1 (Ikeya-Seki) C/1969 Y1 (Bennett) C/1970 K1 (White–Ortiz–Bolelli) C/1973 E1 (Kohoutek) C/1975 V1 (West) C/1980 E1 (Bowell) C/1983 H1 (IRAS–Araki–Alcock) C/1989 X1 (Austin) C/1989 Y1 (Skorichenko–George) C/1992 J1 (Spacewatch–Rabinowitz) C/1993 Y1 (McNaught–Russell) C/1995 O1 (Hale–Bopp) C/1996 B2 (Hyakutake) C/1997 L1 (Zhu–Balam) C/1998 H1 (Stonehouse) C/1998 J1 (SOHO) C/1999 F1 (Catalina) C/1999 S4 (LINEAR) C/2000 U5 (LINEAR) C/2000 W1 (Utsunomiya-Jones) C/2001 OG108 (LONEOS) C/2001 Q4 (NEAT) C/2002 T7 (LINEAR) C/2003 A2 (Gleason) C/2004 F4 (Bradfield) [de] C/2004 Q2 (Machholz) C/2006 A1 (Pojmański) C/2006 M4 (SWAN) C/2006 P1 (McNaught) C/2007 E2 (Lovejoy) C/2007 F1 (LONEOS) C/2007 K5 (Lovejoy) C/2007 N3 (Lulin) C/2007 Q3 (Siding Spring) C/2007 W1 (Boattini) C/2008 Q1 (Matičič) C/2009 F6 (Yi–SWAN) C/2009 R1 (McNaught) C/2010 X1 (Elenin) C/2011 L4 (PANSTARRS) C/2011 W3 (Lovejoy) C/2012 E2 (SWAN) C/2012 F6 (Lemmon) C/2012 K1 (PANSTARRS) C/2012 S1 (ISON) C/2012 S4 (PANSTARRS) C/2013 A1 (Siding Spring) C/2013 R1 (Lovejoy) C/2013 US10 (Catalina) C/2013 V5 (Oukaimeden) C/2014 E2 (Jacques) C/2014 Q2 (Lovejoy) C/2015 ER61 (PanSTARRS) C/2015 V2 (Johnson) 1I/2017 U1 ʻOumuamua C/2017 U7 C/2018 C2 (Lemmon) C/2019 E3 (ATLAS) 2I/Borisov
After 1910 (by name)	Arend–Roland Austin Beljawsky Bennett Boattini Borisov Bowell Bradfield [de] Brooks Catalina C/1999 F1 (Catalina) C/2013 US10 (Catalina) de Kock–Paraskevopoulos [de] Eclipse Elenin Hale-Bopp Humason Hyakutake Ikeya-Seki IRAS–Araki–Alcock ISON Jacques Johnson Kohoutek Lemmon C/2012 F6 C/2018 C2 LINEAR C/1999 S4 (LINEAR) C/2000 U5 (LINEAR) C/2002 T7 LONEOS C/2001 OG108 C/2007 F1 Lovejoy C/2007 E2 C/2007 K5 C/2011 W3 C/2013 R1 C/2014 Q2 Lulin Machholz Matičič McNaught C/2006 P1 C/2009 R1 (McNaught) McNaught–Russell Mrkos NEAT Oukaimeden ʻOumuamua Pan-STARRS C/2011 L4 C/2012 K1 C/2012 S4 311P/PanSTARRS C/2015 ER61 (PanSTARRS) Pereyra Pojmański Ryves Seki–Lines [de] Siding Spring C/2007 Q3 (Siding Spring) C/2013 A1 (Siding Spring) Skjellerup–Maristany Skorichenko–George SOHO Southern [de] Spacewatch–Rabinowitz Stonehouse SWAN C/2006 M4 C/2012 E2 Utsunomiya–Jones West White–Ortiz–Bolelli Wilson–Hubbard [de] Yi–SWAN Zhu–Balam

Category
Commons
Wikinews

Numbered comets
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На других языках

- [en] 139P/Väisälä–Oterma

[ru] 139P/Вяйсяля — Отерма

Комета Вяйсяля — Отерма (139P/Väisälä-Oterma) — короткопериодическая комета семейства Юпитера, которая была обнаружена 7 октября 1939 года финским астрономом Ирьё Вяйсяля в обсерватории Туорла в ходе рутинных поисков астероидов. Она была описана как звёздоподобный объект 15,8 m звёздной величины в созвездии Овна и классифицирована как астероид с временным обозначением 1939 TN. Комета обладает довольно коротким периодом обращения вокруг Солнца — чуть более 9,6 лет.

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