54P/de Vico–Swift–NEAT
              < 54P 
 
            
          | 54P/V–S–N photographed from the US Naval Observatory on 4 August 1965 | |
| Discovery | |
|---|---|
| Discovered by | Francesco de Vico Edward D. Swift NEAT | 
| Discovery site | Rome, Italy | 
| Discovery date | 23 August 1844 | 
| Designations | |
| 
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| 
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| Orbital characteristics | |
| Epoch | 17 October 2024 (JD 2460600.5) | 
| Observation arc | 130.01 years | 
| Number of observations | 406 | 
| Aphelion | 5.40 AU | 
| Perihelion | 2.171 AU | 
| Semi-major axis | 3.786 AU | 
| Eccentricity | 0.42635 | 
| Orbital period | 7.37 years | 
| Inclination | 6.064° | 
| 358.8° | |
| Argument of periapsis | 1.986° | 
| Mean anomaly | 5.760° | 
| Last perihelion | 3 September 2024 | 
| TJupiter | 2.908 | 
| Earth MOID | 1.172 AU | 
| Jupiter MOID | 0.097 AU | 
| Physical characteristics | |
| Mean diameter | ≤ 4.2 km (2.6 mi) | 
| Comet total magnitude (M1) | 14.2 | 
| Comet nuclear magnitude (M2) | 17.2 | 
54P/de Vico–Swift–NEAT is a periodic comet in the Solar System first discovered by Father Francesco de Vico (Rome, Italy) on 23 August 1844. It has become a lost comet several times after its discovery. The comet makes numerous close approaches to Jupiter. The comet was last observed on 3 December 2024.