 | |
| Discovery | |
|---|---|
| Discovered by | Max Wolf @Heidelberg (024)[1] |
| Discovery date | December 22, 1924 |
| Orbital characteristics | |
| Epoch | 2025-05-05 (JD 2460800.5) |
| Aphelion | 6.223AU (Q) |
| Perihelion | 2.443 AU (q) |
| Semi-major axis | 4.333 AU (a) |
| Eccentricity | 0.43625 |
| Orbital period | 9.02yr |
| Inclination | 9.3326° |
| Last perihelion | 2025-Aug-04[2] August 19, 2016[3] July 1, 2010[3][4] March 17, 2004[3][4] |
| Next perihelion | 2034-Aug-01[5] |
| Year (epoch) | 2017[2] | 2020 | 2025[2] |
|---|---|---|---|
| Semi-major axis | 3.35 | 4.30 | 4.33 |
| Perihelion | 1.35 | 2.39 | 2.44 |
| Aphelion | 5.34 | 6.20 | 6.22 |
43P/Wolf–Harrington is aperiodiccomet discovered on December 22, 1924, byMax Wolf inHeidelberg,Germany.[1] In 2019 it passed within 0.065 AU (9,700,000 km; 6,000,000 mi) of Jupiter,[1] which lifted the perihelion point and increased the orbital period to 9 years.[6] The comet last came to perihelion in August 2025 and will return to perihelion in August 2034.
During the 1997 apparition the comet reached anapparent magnitude a little bit brighter than 12.[6]
The comet had an unfavorable apparition in 2010, because duringperihelion (closest approach to the Sun), the comet was only 10 degrees from the Sun as seen from Earth. The comet was not more favorably positioned in the sky until mid October 2010.
Thecomet nucleus is estimated to be 3.6 kilometers in diameter.[1]
| Numbered comets | ||
|---|---|---|
| Previous 42P/Neujmin | 43P/Wolf–Harrington | Next 44P/Reinmuth |
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