Английская Википедия:4142 Dersu-Uzala
4142 Dersu-Uzala, provisional designation Шаблон:Mp, is a Hungaria asteroid, sizable Mars-crosser and potentially slow rotator from the innermost region of the asteroid belt, approximately Шаблон:Convert in diameter. It was discovered by Czech astronomer Zdeňka Vávrová at Kleť Observatory on 28 May 1981.[1] The rare A-type asteroid has a rotation period of 140 hours.[2] It was named after the Siberian trapper and hunter Dersu Uzala.[1]
Orbit and characterization
Dersu-Uzala is a member of the dynamical Hungaria group of asteroids, which form the innermost dense concentration of asteroids in the Solar System. It orbits the Sun in the inner asteroid belt at a distance of 1.6–2.2 AU once every 2 years and 8 months (965 days; semi-major axis of 1.91 AU). Its orbit has an eccentricity of 0.15 and an inclination of 26° with respect to the ecliptic. As its orbit crosses that of Mars at 1.66 AU, it is also a Mars crossing asteroid.[3] The body's observation arc begins with its first observation as Шаблон:Mp at Crimea-Nauchnij in January 1970, or 11 years prior to its official discovery observation at Kleť Observatory.[1]
Naming
This minor planet was named after Dersu Uzala, a Siberian trapper and hunter and friend of Russian writer Vladimir Arsenyev, who named the main character of his novel Dersu Uzala after him. The approved naming citation was published by the Minor Planet Center on 6 February 1993 (Шаблон:Small).[4]
Physical characteristics
In the SMASS classification, Dersu-Uzala is an A-type asteroid.[3] It has also been characterized as an Srw-type, a subtype of the stony S-type asteroids.[5]
Rotation period
In December 2006, a rotational lightcurve of Dersu-Uzala was obtained from photometric observations by American photometrist Brian Warner at the Palmer Divide Observatory in Colorado. Lightcurve analysis gave a rotation period of Шаблон:Val hours with a brightness amplitude of 0.60 magnitude (Шаблон:Small).[2][6]Шаблон:Efn Alternative observations gave a period of 71 and 71.2 hours, respectively.[7][8]
Diameter and albedo
According to the surveys carried out by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Dersu-Uzala measures 6.01 and 6.34 kilometers in diameter and its surface has an albedo of 0.164 and 0.30, respectively. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for a stony asteroid of 0.2 and calculates a diameter of 7.13 kilometers based on an absolute magnitude of 13.1.[2]
Notes
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
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Use dmy dates Шаблон:Minor planets navigator Шаблон:Small Solar System bodies
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- Английская Википедия
- Mars-crossing asteroids
- Hungaria asteroids
- Discoveries by Zdeňka Vávrová
- Named minor planets
- Slow rotating minor planets
- A-type asteroids (SMASS)
- Astronomical objects discovered in 1981
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