139P/Väisälä-Oterma
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| Comet (List of comets) |
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|---|---|
| No image. | |
| Discovery | |
| Discoverer | Yrjö Väisälä Liisi Oterma |
| Discovery date | October 7, 1939 |
| Alternate designations |
1939 TN; 1998 WG22 |
| Orbital elements A | |
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| Eccentricity (e) | 0.2458 |
| Semi-major axis (a) | 4.511 AU |
| Perihelion (q) | 3.402 AU |
| Aphelion (Q) | 5.62 AU |
| Orbital period (P) | 9.58 a |
| Inclination (i) | 2.3296° |
| Last perihelion date | September 27, 1998 |
| Next est. perihelion date | April 20, 2008 |
139P/Väisälä-Oterma is a periodic comet in our solar system. When it as discovered in 1939 it was not recognized as a comet and designated as asteroid 1939 TN.
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| Comets | ||
|---|---|---|
| Previous periodic comet | 139P/Väisälä-Oterma | Next periodic comet |
