Английская Википедия:2063 Bacchus
Шаблон:Short description Шаблон:Use dmy dates Шаблон:Infobox planet
2063 Bacchus, provisional designation Шаблон:Mp, is a stony asteroid and near-Earth object of the Apollo group, approximately 1 kilometer in diameter. The contact binary was discovered on 24 April 1977, by American astronomer Charles Kowal at the Palomar Observatory in California, United States. It was named after Bacchus from Roman mythology.[1][2]
Orbit and classification
Bacchus orbits the Sun at a distance of 0.7–1.5 AU once every 1 years and 1 month (409 days). Its orbit has an eccentricity of 0.35 and an inclination of 9° with respect to the ecliptic.[3] The asteroid's observation arc begins with its official discovery observation at Palomar.[2] Due to its eccentric orbit, it is also a Venus-crosser.
Approaches
Bacchus has an Earth minimum orbital intersection distance of Шаблон:Convert, which corresponds to 26.4 lunar distances.[3] On 31 March 1996, it passed Шаблон:Convert from Earth.[3]
Physical characteristics
In the SMASS classification, Bacchus is a Sq-type, that transitions from the common S-type asteroids to the Q-type asteroids.[3] It is a contact binary with bilobate shape.
In March 1996 radar observations were conducted at the Goldstone Observatory under the direction of JPL scientists Steven Ostro and Lance Benner, allowing the construction of a model of the object.[4] Optical observations were conducted by Petr Pravec, Marek Wolf, and Lenka Šarounová during March and April 1996. It was also photometrically observed by American astronomer Brian Warner in 2015.[5][6][7]
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Bacchus measures 1.03 kilometers in diameter and its surface has an albedo of 0.19.[8] The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and derives a diameter of 1.05 kilometers based on an absolute magnitude of 17.25.[9]
Naming
This minor planet was named for the Roman god Bacchus (Dionysus).The official Шаблон:MoMP was published by the Minor Planet Center on 1 August 1978 (Шаблон:Small).[1][10]
References
External links
- Asteroid Radar Group page
- 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
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- Английская Википедия
- Apollo asteroids
- Discoveries by Charles T. Kowal
- Named minor planets
- Contact binary (small Solar System body)
- Sq-type asteroids (SMASS)
- Astronomical objects discovered in 1977
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- Википедия
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