132P/Helin–Roman–Alu
132P/Helin–Roman–Alu, also known as Helin-Roman-Alu 2, is a periodic comet in the Solar System.
 | |
| Discovery | |
|---|---|
| Discovered by | Eleanor F. Helin Brian P. Roman Jeff Alu |
| Discovery date | October 26, 1989 |
| Designations | |
| 1989 XVI; 1997 N2 | |
| Orbital characteristics | |
| Epoch | March 6, 2006 |
| Aphelion | 6.264 AU |
| Perihelion | 1.924 AU |
| Semi-major axis | 4.094 AU |
| Eccentricity | 0.53 |
| Orbital period | 8.283 a |
| Inclination | 5.7660° |
| Last perihelion | November 13, 2021[1] May 21, 2014[2] February 14, 2006 |
| Next perihelion | 2029-Jul-19[3] |
References
- MPC
- Syuichi Nakano (2011-10-31). "132P/Helin-Roman-Alu 2 (NK 2144)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-25.
- "Horizons Batch for 132P/Helin-Roman-Alu 2 (90001044) on 2029-Jul-19" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2022-06-22. (JPL#K212/19 Soln.date: 2022-Oct-12)
External links
- 132P/Helin-Roman-Alu 2 – Seiichi Yoshida @ aerith.net
- 132P at Kronk's Cometography
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