414P/STEREO

Periodic comet From Wikipedia, the free encyclopedia

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.[4] It last came to perihelion in September 2025 and will come to perihelion again in May 2030.[3]

DiscoveredbySTEREO-A
Scott Ferguson, et al.
Discoverydate11 May 2016
P/2016 J3, P/2021 A3
Epoch12 October 2022 (JD 2459864.5)
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414P/STEREO
The comet imaged from the Zwicky Transient Facility on 9 January 2021
Discovery[1]
Discovered bySTEREO-A
Scott Ferguson, et al.
Discovery date11 May 2016
Designations
P/2016 J3, P/2021 A3
Orbital characteristics[2]
Epoch12 October 2022 (JD 2459864.5)
Observation arc9.37 years
Number of
observations		294
Aphelion5.061 AU
Perihelion0.526 AU
Semi-major axis2.794 AU
Eccentricity0.81170
Orbital period4.67 years
Inclination23.391°
257.79°
Argument of
periapsis		210.71°
Mean anomaly131.86°
Last perihelion26 September 2025
Next perihelion28 May 2030[3]
TJupiter2.648
Earth MOID0.319 AU
Jupiter MOID0.841 AU
Comet total
magnitude (M1)		20.5
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