54P/de Vico–Swift–NEAT
AU | |
Eccentricity | 0.43 |
---|---|
Orbital period | 7.313 a |
Inclination | 6.084° |
Last perihelion | April 15, 2017[1][2] November 28, 2009 |
Next perihelion | 2024-Sep-03[3] |
54P/de Vico–Swift–NEAT is a
First discovery (1844)
Independent discoveries were made by Melhop (Hamburg, Germany) on September 6 and by Hamilton Lanphere Smith (Cleveland, Ohio, USA) on September 10.
Hervé Faye (Paris, France) computed the first elliptical orbit on September 16, 1844, and the orbital period as 5.46 years.
The comet was considered lost as subsequent predicted returns after 1844 were never observed.
Second discovery (1894)
Edward D. Swift (Echo Mountain, California, USA) rediscovered the comet on November 21, 1894. Adolf Berberich suggested the comet might be the same as de Vico's comet on the basis of the comet's location and direction of motion.
After 1894, the comet was considered lost again after the 1901 and 1907 returns remained unseen.
Third discovery (1965)
In 1963, Brian G. Marsden used a computer to link the 1844 and 1894 sightings and calculated a favourable return in 1965. The comet was subsequently recovered by Arnold Klemola (Yale-Columbia Southern Observatory, Argentina) on June 30, 1965, at magnitude 17.
In 1968 the comet passed close to
Fourth discovery (2002)
The
2009 apparition
On August 17, 2009, comet 54P/de Vico–Swift–NEAT was recovered,[5] while 2.3 AU from the Sun.
References
- ^ a b MPC
- Syuichi Nakano (2009-08-20). "54P/de Vico-Swift-NEAT (NK 1813)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-18.
- ^ "Horizons Batch for 54P/de Vico-Swift-NEAT (90000615) on 2024-Sep-03" (Perihelion occurs when rdot flips from negative to positive). JPL Horizons. Retrieved 2022-06-27. (JPL#22 Soln.date: 2009-Dec-31)
- ^ "JPL Close-Approach Data: 54P/de Vico-Swift-NEAT". 2009-12-20. Retrieved 2012-02-22.
- ^ Jonathan Shanklin (2009). "BAA Comet section Old News (2009)". British Astronomical Association Comet Section. Retrieved 2009-09-21.
External links
- Orbital simulation from JPL (Java) / Ephemeris
- 54P at Gary W. Kronk's Cometography
- 54P at Kazuo Kinoshita's Comets
- 54P at Seiichi Yoshida's Comet Catalog