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99P/Kowal 
Summary
99P/Kowal, also known as Kowal 1, is a periodic comet in the Solar System that orbits out by Jupiter and has a 15 year orbital period. It has been observed regularly since 2019. It came to perihelion in April 2022 and will again in May 2037.
| Discovery | |
|---|---|
| Discovered by | Charles T. Kowal |
| Discovery date | April 24, 1977 |
| Designations | |
| 1977 III; 1992 VI | |
| Orbital characteristics | |
| Epoch | March 6, 2006 |
| Aphelion | 7.48 AU |
| Perihelion | 4.719 AU |
| Semi-major axis | 6.099 AU |
| Eccentricity | 0.2264 |
| Orbital period | 15.06 a |
| Inclination | 4.3462° |
| Last perihelion | April 12, 2022[1][2] January 15, 2007 |
| Next perihelion | 2037-May-06[3] |
References edit
- ^ MPC
- ^ 99P past, present and future orbital elements
- ^ "Horizons Batch for 99P/Kowal 1 (90000934) on 2037-May-06" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2023-07-06. (JPL#65 Soln.date: 2023-Jul-05)
- 99P at Gary W. Kronk's Cometography
External links edit
- 99P/Kowal 1 – Seiichi Yoshida @ aerith.net