414P/STEREO
DiscovererSTEREO-A
Scott Ferguson, et al.
Discovery date11 May 2016
Mpc nameP/2016 J3, P/2021 A3
Epoch12 October 2022 (JD 2459864.5)
Observation arc9.37 years
Obs294
Perihelion0.526 AU
Aphelion5.061 AU
Semimajor2.794 AU
Eccentricity0.81170
Period4.67 years
Inclination23.391°
Asc node257.79°
Arg peri210.71°
Mean131.86°
Tjup2.648
Earth moid0.319 AU
Jupiter moid0.841 AU
M 120.5
Last p26 September 2025
Next p28 May 2030[1]

414P/STEREO is a faint Jupiter-family comet with a 4.67-year orbit around the Sun. It is one of nine comets discovered by the STEREO spacecraft, and one of the first comets recovered with assistance from AI programming.[2] It last came to perihelion in September 2025 and will come to perihelion again in May 2030.[1]

References

  1. ^ "Horizons Batch for 414P/STEREO (90001398) on 2030-May-28" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2026-02-08. (JPL #17 / Soln.date: 2026-Jan-07)
  2. ^ D. A. Duev; B. T. Bolin; M. J. Graham et al. (2021). "Tails: Chasing Comets with the Zwicky Transient Facility and Deep Learning". arXiv:2102.13352