Английская Википедия:3794 Sthenelos
3794 Sthenelos Шаблон:IPAc-en is a mid-sized Jupiter trojan from the Greek camp, approximately Шаблон:Convert in diameter. It was discovered on 12 October 1985, by American astronomer Carolyn Shoemaker at the Palomar Observatory in California.[1] The presumed C-type asteroid has a rotation period of 12.9 hours.[2] It was named after the Greek warrior Sthenelus from Greek mythology.[1]
Orbit and classification
Sthenelos is a dark Jovian asteroid in a 1:1 orbital resonance with Jupiter. It is located in the leading Greek camp at the Gas Giant's Шаблон:L4 Lagrangian point, 60° ahead on its orbit Шаблон:Cross reference. It is also a non-family asteroid of the Jovian background population.[3] It orbits the Sun at a distance of 4.4–6.0 AU once every 11 years and 11 months (4,338 days; semi-major axis of 5.21 AU). Its orbit has an eccentricity of 0.15 and an inclination of 6° with respect to the ecliptic.[4]
The body's observation arc begins with its first observation as Шаблон:Mp at Heidelberg Observatory in September 1949, or 36 years prior to its official discovery observation at Palomar.[1]
Physical characteristics
Sthenelos is an assumed, carbonaceous C-type asteroid, while most larger Jupiter trojans are D-type asteroids. It has a high V–I color index of 1.07.[2]
Rotation period
In August 1995, a rotational lightcurve of Sthenelos was obtained from photometric observations by Italian astronomer Stefano Mottola using the Bochum 0.61-metre Telescope at ESO's La Silla Observatory in Chile. Lightcurve analysis gave a well-defined rotation period of Шаблон:Val hours with a brightness amplitude of 0.27 magnitude (Шаблон:Small).[2][5]
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Sthenelos measures 34.53 kilometers in diameter and its surface has an albedo of 0.112,[6] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 46.30 kilometers based on an absolute magnitude of 10.4.[2]
Naming
This minor planet was named from Greek mythology after Sthenelus, a Greek warrior and companion of Diomedes during the Trojan War. He stole Aeneas' chariot horses and brought it back to the Greek camp. The official naming citation was published by the Minor Planet Center on 27 August 1988 (Шаблон:Small).[7]
References
External links
- Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
- Dictionary of Minor Planet Names, Google books
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- Asteroid 3794 Sthenelos at the Small Bodies Data Ferret
- 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
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- Discoveries by Carolyn S. Shoemaker
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- Astronomical objects discovered in 1985
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