Английская Википедия:53311 Deucalion
Шаблон:Use dmy dates Шаблон:Infobox planet
53311 Deucalion Шаблон:IPAc-en, provisional designation Шаблон:Mp, is a trans-Neptunian object from the classical Kuiper belt, with a diameter of approximately Шаблон:Convert, located in the outermost region of the Solar System. The cubewano belongs to the cold population and was discovered on 18 April 1999, by the Deep Ecliptic Survey at the Kitt Peak National Observatory in Arizona, United States. It was named after Deucalion, from Greek mythology.[1][2][3]
Orbit and classification
Deucalion orbits the Sun at a distance of 41.4–47.4 AU once every 295 years and 10 months (108,044 days; semi-major axis of 44.4 AU). Its orbit has an eccentricity of 0.07 and an inclination of 0° with respect to the ecliptic.[4] The body's observation arc begins six days prior to its official discovery observation in April 1999.[1]
It is a cubewano from the classical Kuiper belt,[2] located in between the resonant plutino and twotino populations and has a low-eccentricity orbit. With its very small inclination (0.3°), significantly less than 4–7°, the object belongs to the cold population rather than the "stirred" hot population.
Naming
This minor planet was named from Greek mythology after Deucalion, son of Prometheus. He and his wife Pyrrha were the only ones that survived the great deluge ("the flood of Deucalion") brought upon all humans by Zeus. The official Шаблон:MoMP was published by the Minor Planet Center on 14 June 2003 (Шаблон:Small).[5]
Physical characteristics
Johnston's archive estimates a diameter of 212 kilometers based on an assumed albedo of 0.09, while American astronomer Michael Brown, calculates a diameter of 131 kilometers, using an estimated albedo of 0.20 and an absolute magnitude of 6.6.[2][3]
On his website, Brown lists this object no longer as a dwarf planet candidate in his 5-class taxonomic system.[3] As of 2018, no spectral type and color indices, nor a rotational lightcurve have been obtained from spectroscopic and photometric observations. The body's color, rotation period, pole and shape remain unknown.[4][6]
References
External links
- List of Transneptunian Objects, Minor Planet Center
- Dictionary of Minor Planet Names, Google books
- Discovery Circumstances: Numbered Minor Planets (50001)-(55000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Trans-Neptunian objects Шаблон:Authority control
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- Английская Википедия
- Cold classical Kuiper belt objects
- Discoveries by the Deep Ecliptic Survey
- Named minor planets
- Astronomical objects discovered in 1999
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