139P/Väisälä–Oterma

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139P/Väisälä–Oterma
Discovery
Discovered byYrjö Väisälä
Liisi Oterma
Discovery dateOctober 7, 1939
Designations
1939 TN; 1998 WG22
Orbital characteristics
EpochMarch 6, 2006
Aphelion5.62 AUえーゆー
Perihelion3.402 AUえーゆー
Semi-major axis4.511 AUえーゆー
Eccentricity0.2458
Orbital period9.58 a
Inclination2.3296°
Last perihelionDecember 10, 2017
April 19, 2008
Next perihelion2027-Jul-23[1]

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.

References[edit]

  1. ^ MPC

External links[edit]


Numbered comets
Previous
138P/Shoemaker–Levy 		139P/Väisälä–Oterma Next
140P/Bowell–Skiff


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