Английская Википедия:3752 Camillo
Шаблон:Use dmy dates Шаблон:Infobox planet
3752 Camillo is an inclined contact-binary asteroid, classified as near-Earth object of the Apollo group, approximately Шаблон:Convert in diameter. It was discovered on 15 August 1985, by astronomers Eleanor Helin and Maria Barucci using a Шаблон:Convert telescope at the CERGA Observatory in Caussols, France. Lightcurve studies by Petr Pravec in 1998 suggest that the assumed S-type asteroid has an elongated shape and a longer-than average rotation period of 38 hours.[1][2]
Orbit
Camillo orbits the Sun at a distance of 0.99–1.8 AU once every 20 months (614 days; semi-major axis of 1.41 AU). Its orbit has an eccentricity of 0.30 and an inclination of 56° with respect to the ecliptic.[3]
Close approaches
The closest point between the orbit of the Earth and the orbit of this asteroid (Earth MOID) is currently Шаблон:Convert or 30 lunar distances,[3] so Camillo does not come close enough to Earth to qualify as a potentially hazardous asteroid. It came to perihelion (its closest approach to the Sun) on 6 January 1976 and, on 17 February 1976 and passed within Шаблон:Convert of Earth.[3]
2013 passage
Camillo came to perihelion on 27 December 2012.[3] On 12 February 2013 the asteroid passed Шаблон:Convert from Earth[3] and had an apparent magnitude of 13.[2] During the 2013 passage the asteroid was studied by radar using Goldstone and Arecibo.[2]
| Файл:3752 Camillo skypath-2013.png Camillo's south to north daily motion in the sky as seen from the earth |
2018 passage
On February 20, 2018, the asteroid passed by Earth. It was observed on radar by Arecibo Observatory and shown to have a long angular double-lobed shape.[4] At Шаблон:Convert distance its peak magnitude was about 13.
| Файл:3752 Camillo skypath-2018.png Camillo's south to north daily motion in the sky as seen from the earth |
Naming
This minor planet was named for the son of the early Roman King Turno. "Camillo" is also the name of the discoverer's son.[5] The official naming citation was published by the Minor Planet Center on 20 May 1989 (Шаблон:Small).[6]
References
External links
- Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Шаблон:NeoDys
- Шаблон:ESA-SSA
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
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- Astronomical objects discovered in 1985
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