astro.wikisort.org - Comet

72P/Denning–Fujikawa is a periodic comet discovered on 4 October 1881 by William Frederick Denning.[2] The comet was not seen at another apparition until recovered by Shigehisa Fujikawa in 1978. From 29 December 1978 until 17 June 2014, the comet was lost. On 17 June 2014 the comet was recovered by Hidetaka Sato.[3]

72P/Denning–Fujikawa

Discovery
Discovered by	William Frederick Denning
Discovery date	4 October 1881
Orbital characteristics A
Epoch	2014-07-02 (JD 2456840.5)[1]
Aphelion	7.884 AU (Q)
Perihelion	0.7842 AU (q)
Semi-major axis	4.334 AU (a)
Eccentricity	0.8191
Orbital period	9.02 yr
Inclination	9.17°
Earth MOID	0.085 AU (12,700,000 km)
Last perihelion	2014-Jul-11[1] 2005-Jun-20[1]
Next perihelion	2023-Jun-15[1]

Repeated failures to recover the comet during perihelion even in cases where it is estimated that it should have been magnitude 8 or, as in 1987 and 1996, it was being actively looked for suggest it is only occasionally active.[4] This has resulted in it being classified as a transitional comet.[4]

References

External links

• Orbital simulation from JPL (Java) / Horizons Ephemeris

Numbered comets
Previous 71P/Clark	72P/Denning–Fujikawa	Next 73P/Schwassmann–Wachmann

На других языках

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- [en] 72P/Denning–Fujikawa

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[ru] 72P/Деннинга — Фудзикавы

Комета Деннинга — Фудзикавы (72P/Denning-Fujikawa) — короткопериодическая комета из семейства Юпитера, которая была открыта 4 октября 1881 года астрономами-любителями британцем Уильямом Деннингом и японцем Сигэхисой Фудзикавой  (англ.) (рус.. Обладает сравнительно коротким периодом обращения вокруг Солнца — всего чуть более 9 лет.

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