161P/Hartley–IRAS
| Discovery | |
|---|---|
AU | |
| Eccentricity | 0.8351 |
| Orbital period | 21.51 yr |
| Inclination | 95.6899° |
| Last perihelion | June 20, 2005 |
| Next perihelion | 2026 Oct. 29[1] 2026 Nov. 27[2][3][4] 2026 December 18[5] |
161P/Hartley–IRAS is a periodic comet with an orbital period of 21 years. It fits the classical definition of a Halley-type comet with (20 years < period < 200 years).[6]
This was one of six comets discovered by the infrared space telescope IRAS, in 1983.[7][8]
References
- Syuichi Nakano (2005-06-21). "161P/Hartley-IRAS (NK 1184)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-18.
- ^ "161P/Hartley-IRAS Orbit". Minor Planet Center. Retrieved 2014-06-18.
- ^ Seiichi Yoshida (2006-07-16). "161P/Hartley-IRAS". Seiichi Yoshida's Comet Catalog. Retrieved 2012-02-19.
- ^ "Horizons Batch for 161P/Hartley-IRAS on 2026-Nov-27" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2022-06-22. (JPL#60 Soln.date: 2021-Apr-15)
- ^ Patrick Rocher (2005-10-12). "Note number : 0132 P/Hartley-IRAS : 161P". Institut de mécanique céleste et de calcul des éphémérides. Retrieved 2012-02-19.
- ^ "JPL Small-Body Database Browser: 161P/Hartley-IRAS" (2005-10-12 last obs). Jet Propulsion Laboratory. Retrieved 2012-07-26.
- ISBN 978-3-540-00238-3.
- Bibcode:1986QJRAS..27..102M. Retrieved 2019-09-30.
External links
- Orbital simulation from JPL (Java) / Horizons Ephemeris
- 161P/Hartley-IRAS – Seiichi Yoshida @ aerith.net
- 161P at Kronk's Cometography
.png)
 | This comet-related article is a stub. You can help Wikipedia by expanding it. |